Fix double-space in xmldoc generation. (#29224)

* Fix double-space in xmldoc generation.

* regenerate C# protos

Co-authored-by: Jan Tattermusch <jtattermusch@google.com>

src/compiler/csharp_generator.cc

@@ -695,7 +695,7 @@ void GenerateBindServiceWithBinderMethod(Printer* out,
                                          const ServiceDescriptor* service) {
   out->Print(
       "/// <summary>Register service method with a service "
-      "binder with or without implementation. Useful when customizing the  "
+      "binder with or without implementation. Useful when customizing the "
       "service binding logic.\n"
       "/// Note: this method is part of an experimental API that can change or "
       "be "

src/csharp/Grpc.Examples/MathGrpc.cs

@@ -349,7 +349,7 @@ namespace Math {
           .AddMethod(__Method_Sum, serviceImpl.Sum).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.HealthCheck/HealthGrpc.cs

@@ -285,7 +285,7 @@ namespace Grpc.Health.V1 {
           .AddMethod(__Method_Watch, serviceImpl.Watch).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/BenchmarkServiceGrpc.cs

@@ -388,7 +388,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_StreamingBothWays, serviceImpl.StreamingBothWays).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/EmptyServiceGrpc.cs

@@ -87,7 +87,7 @@ namespace Grpc.Testing {
       return grpc::ServerServiceDefinition.CreateBuilder().Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/MetricsGrpc.cs

@@ -246,7 +246,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_GetGauge, serviceImpl.GetGauge).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/ReportQpsScenarioServiceGrpc.cs

@@ -191,7 +191,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_ReportScenario, serviceImpl.ReportScenario).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/TestGrpc.cs

@@ -626,7 +626,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_UnimplementedCall, serviceImpl.UnimplementedCall).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>
@@ -812,7 +812,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_UnimplementedCall, serviceImpl.UnimplementedCall).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>
@@ -995,7 +995,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_Stop, serviceImpl.Stop).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>
@@ -1249,7 +1249,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_GetClientAccumulatedStats, serviceImpl.GetClientAccumulatedStats).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>
@@ -1429,7 +1429,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_SetNotServing, serviceImpl.SetNotServing).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>
@@ -1610,7 +1610,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_Configure, serviceImpl.Configure).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.IntegrationTesting/WorkerServiceGrpc.cs

@@ -388,7 +388,7 @@ namespace Grpc.Testing {
           .AddMethod(__Method_QuitWorker, serviceImpl.QuitWorker).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>

src/csharp/Grpc.Reflection/ReflectionGrpc.cs

@@ -169,7 +169,7 @@ namespace Grpc.Reflection.V1Alpha {
           .AddMethod(__Method_ServerReflectionInfo, serviceImpl.ServerReflectionInfo).Build();
     }
 
-    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the  service binding logic.
+    /// <summary>Register service method with a service binder with or without implementation. Useful when customizing the service binding logic.
     /// Note: this method is part of an experimental API that can change or be removed without any prior notice.</summary>
     /// <param name="serviceBinder">Service methods will be bound by calling <c>AddMethod</c> on this object.</param>
     /// <param name="serviceImpl">An object implementing the server-side handling logic.</param>