Merge "Add a comment to explain how errno is set"

                return false;

            }

        }

        // The PLOG() statement below uses the error code stored in `errno` by

        // WriteStringToFile() because access() only overwrites `errno` if it fails

        // and because this code is only reached if the access() function returns 0.

        PLOG(ERROR) << "Failed to write '" << value_ << "' to " << path;

        return false;

    }