message: Fix a slip of the pen
diff: @@ -19,7 +19,7 @@ limitations under the License.
  // need more sophisticated syntax than that.
  //
  // Example:
  -// void func() {}
  +// void func() {
  // FILE* fp = fopen("data.txt", "r");
  // if (fp == nullptr) return;
  // auto fp_cleaner = gtl::MakeCleanup([fp] { fclose(fp); });
  