Adjust log message for glog.

go/glog/glog.go

@@ -736,7 +736,7 @@ var logExitFunc func(error)
 // It flushes the logs and exits the program; there's no point in hanging around.
 // l.mu is held.
 func (l *loggingT) exit(err error) {
-	fmt.Fprintf(os.Stderr, "log: exiting because of error: %s\n", err)
+	fmt.Fprintf(os.Stderr, "glog: exiting because of error: %s\n", err)
 	// If logExitFunc is set, we do that instead of exiting.
 	if logExitFunc != nil {
 		logExitFunc(err)