Reviewer comments

examples/cpp/keyvaluestore/client.cc

@@ -41,7 +41,8 @@ class KeyValueStoreClient {
   KeyValueStoreClient(std::shared_ptr<Channel> channel)
       : stub_(KeyValueStore::NewStub(channel)) {}
 
-  // Requests each key in the vector and displays the value as a pair
+  // Requests each key in the vector and displays the key and its corresponding
+  // value as a pair
   void GetValues(const std::vector<std::string>& keys) {
     // Context for the client. It could be used to convey extra information to
     // the server and/or tweak certain RPC behaviors.

examples/cpp/keyvaluestore/server.cc

@@ -81,7 +81,7 @@ void RunServer() {
   // Listen on the given address without any authentication mechanism.
   builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
   // Register "service" as the instance through which we'll communicate with
-  // clients. In this case it corresponds to an *synchronous* service.
+  // clients. In this case, it corresponds to an *synchronous* service.
   builder.RegisterService(&service);
   // Finally assemble the server.
   std::unique_ptr<Server> server(builder.BuildAndStart());