Add a function SetLogFuncCall to enable

@@ -60,7 +60,6 @@ var (
 	AdminHttpPort          int
 	FlashName              string // name of the flash variable found in response header and cookie
 	FlashSeperator         string // used to seperate flash key:value
-	EnableLogFuncCallDepth bool   // enable the funcCallDeppth
 )
 
 func init() {
@@ -134,10 +133,6 @@ func init() {
 	// init BeeLogger
 	BeeLogger = logs.NewLogger(10000)
 	BeeLogger.SetLogger("console", "")
-	if EnableLogFuncCallDepth {
-		BeeLogger.EnableFuncCallDepth(true)
-		BeeLogger.SetLogFuncCallDepth(3)
-	}
 
 	err := ParseConfig()
 	if err != nil && !os.IsNotExist(err) {

@@ -22,6 +22,11 @@ func SetLevel(l int) {
 	BeeLogger.SetLevel(l)
 }
 
+func SetLogFuncCall(b bool) {
+	BeeLogger.EnableFuncCallDepth(b)
+	BeeLogger.SetLogFuncCallDepth(3)
+}
+
 // logger references the used application logger.
 var BeeLogger *logs.BeeLogger