Fix comment syntax in any.proto (#8792)

* Fix comment syntax in any.proto

Remove extra spaces which cause incorrect indentation in godoc.
Remove the "====" style title which is not rendered by godoc.

* Run ./generate_descriptor_proto.sh

csharp/src/Google.Protobuf/WellKnownTypes/Any.cs

@@ -65,7 +65,7 @@ namespace Google.Protobuf.WellKnownTypes {
   ///       foo = any.unpack(Foo.class);
   ///     }
   ///
-  ///  Example 3: Pack and unpack a message in Python.
+  /// Example 3: Pack and unpack a message in Python.
   ///
   ///     foo = Foo(...)
   ///     any = Any()
@@ -75,7 +75,7 @@ namespace Google.Protobuf.WellKnownTypes {
   ///       any.Unpack(foo)
   ///       ...
   ///
-  ///  Example 4: Pack and unpack a message in Go
+  /// Example 4: Pack and unpack a message in Go
   ///
   ///      foo := &pb.Foo{...}
   ///      any, err := anypb.New(foo)
@@ -95,7 +95,7 @@ namespace Google.Protobuf.WellKnownTypes {
   /// name "y.z".
   ///
   /// JSON
-  /// ====
+  ///
   /// The JSON representation of an `Any` value uses the regular
   /// representation of the deserialized, embedded message, with an
   /// additional field `@type` which contains the type URL. Example:

objectivec/GPBAny.pbobjc.h

@@ -81,7 +81,7 @@ typedef GPB_ENUM(GPBAny_FieldNumber) {
  *       foo = any.unpack(Foo.class);
  *     }
  *
- *  Example 3: Pack and unpack a message in Python.
+ * Example 3: Pack and unpack a message in Python.
  *
  *     foo = Foo(...)
  *     any = Any()
@@ -91,7 +91,7 @@ typedef GPB_ENUM(GPBAny_FieldNumber) {
  *       any.Unpack(foo)
  *       ...
  *
- *  Example 4: Pack and unpack a message in Go
+ * Example 4: Pack and unpack a message in Go
  *
  *      foo := &pb.Foo{...}
  *      any, err := anypb.New(foo)
@@ -112,7 +112,7 @@ typedef GPB_ENUM(GPBAny_FieldNumber) {
  *
  *
  * JSON
- * ====
+ *
  * The JSON representation of an `Any` value uses the regular
  * representation of the deserialized, embedded message, with an
  * additional field `\@type` which contains the type URL. Example:

php/src/Google/Protobuf/Any.php

@@ -28,7 +28,7 @@ use Google\Protobuf\Internal\GPBUtil;
  *     if (any.is(Foo.class)) {
  *       foo = any.unpack(Foo.class);
  *     }
- *  Example 3: Pack and unpack a message in Python.
+ * Example 3: Pack and unpack a message in Python.
  *     foo = Foo(...)
  *     any = Any()
  *     any.Pack(foo)
@@ -36,7 +36,7 @@ use Google\Protobuf\Internal\GPBUtil;
  *     if any.Is(Foo.DESCRIPTOR):
  *       any.Unpack(foo)
  *       ...
- *  Example 4: Pack and unpack a message in Go
+ * Example 4: Pack and unpack a message in Go
  *      foo := &pb.Foo{...}
  *      any, err := anypb.New(foo)
  *      if err != nil {
@@ -53,7 +53,6 @@ use Google\Protobuf\Internal\GPBUtil;
  * in the type URL, for example "foo.bar.com/x/y.z" will yield type
  * name "y.z".
  * JSON
- * ====
  * The JSON representation of an `Any` value uses the regular
  * representation of the deserialized, embedded message, with an
  * additional field `@type` which contains the type URL. Example:

src/google/protobuf/any.proto

@@ -64,7 +64,7 @@ option objc_class_prefix = "GPB";
 //       foo = any.unpack(Foo.class);
 //     }
 //
-//  Example 3: Pack and unpack a message in Python.
+// Example 3: Pack and unpack a message in Python.
 //
 //     foo = Foo(...)
 //     any = Any()
@@ -74,7 +74,7 @@ option objc_class_prefix = "GPB";
 //       any.Unpack(foo)
 //       ...
 //
-//  Example 4: Pack and unpack a message in Go
+// Example 4: Pack and unpack a message in Go
 //
 //      foo := &pb.Foo{...}
 //      any, err := anypb.New(foo)
@@ -95,7 +95,7 @@ option objc_class_prefix = "GPB";
 //
 //
 // JSON
-// ====
+//
 // The JSON representation of an `Any` value uses the regular
 // representation of the deserialized, embedded message, with an
 // additional field `@type` which contains the type URL. Example: