avoid panic when len(log) == 0 in colorLog func

2013-08-22 14:54:02 +08:00 · 2013-08-22 14:54:02 +08:00 · 90648d22cd
parent 467f7a0994
commit 90648d22cd
1 changed files with 4 additions and 0 deletions
--- a/util.go
+++ b/util.go
@ -50,6 +50,10 @@ const (
 // Errors have to surrounded by "[ " and " ]"(space).
 func colorLog(format string, a ...interface{}) {
 	log := fmt.Sprintf(format, a...)
+	if len(log) == 0 {
+		return
+	}
+
 	if runtime.GOOS != "windows" {
 		var clog string