Merge pull request #13031 from bergquist/golang_1.11

upgrade to golang 1.11

pkg/log/log.go

@@ -105,7 +105,7 @@ func Critical(skip int, format string, v ...interface{}) {
 }
 
 func Fatal(skip int, format string, v ...interface{}) {
-	Root.Crit(fmt.Sprintf(format, v))
+	Root.Crit(fmt.Sprintf(format, v...))
 	Close()
 	os.Exit(1)
 }