message: updated documentation of RecordProto
diff: @@ -293,8 +293,8 @@ message ValueProto {
  }
  // Defines a record in its serialized format.
  - // A record is a sequence of one or more distinctly
  - // typed uniquely named values.
  + // A record is a sequence of one or more
  + // typed uniquely named values, which may be of different types.
  message RecordProto {
  repeated NameValuePairProto fields = 1;
  }
  