accesslog: fix docs in retry policy (#21281)

Signed-off-by: Rama Chavali <rama.rao@salesforce.com>

Mirrored from https://github.com/envoyproxy/envoy @ e970521b86c5ae8c1886827af2404a163593f319

envoy/extensions/access_loggers/grpc/v3/als.proto

@@ -91,10 +91,9 @@ message CommonGrpcAccessLogConfig {
   repeated string filter_state_objects_to_log = 5;
 
   // Sets the retry policy when the establishment of a gRPC stream fails.
-  // If the stream succeeds once in establishing If the stream succeeds
+  // If the stream succeeds at least once in establishing itself,
-  // at least once in establishing itself, no retry will be performed
+  // no retry will be performed no matter what gRPC status is received.
-  // no matter what gRPC status is received. Note that only
+  // Note that only :ref:`num_retries <envoy_v3_api_field_config.core.v3.RetryPolicy.num_retries>`
-  // :ref:`num_retries <envoy_v3_api_field_config.core.v3.RetryPolicy.num_retries>`
   // will be used in this configuration. This feature is used only when you are using
   // :ref:`Envoy gRPC client <envoy_v3_api_field_config.core.v3.GrpcService.envoy_grpc>`.
   config.core.v3.RetryPolicy grpc_stream_retry_policy = 7;