Handle failed calls in sync client

test/cpp/qps/client_sync.cc

@@ -130,11 +130,8 @@ class SynchronousUnaryClient GRPC_FINAL : public SynchronousClient {
     grpc::Status s =
         stub->UnaryCall(&context, request_, &responses_[thread_idx]);
     entry->set_value((UsageTimer::Now() - start) * 1e9);
-    if (!s.ok()) {
+    entry->set_status(s.error_code());
-      gpr_log(GPR_ERROR, "RPC error: %d: %s", s.error_code(),
+    return true;
-              s.error_message().c_str());
-    }
-    return s.ok();
   }
 };