add gin panic time log (gin-gonic#1270)

* add gin pinic time log

* Update recovery.go

recovery.go

@@ -12,6 +12,7 @@ import (
 	"log"
 	"net/http/httputil"
 	"runtime"
+	"time"
 )
 
 var (
@@ -38,7 +39,7 @@ func RecoveryWithWriter(out io.Writer) HandlerFunc {
 				if logger != nil {
 					stack := stack(3)
 					httprequest, _ := httputil.DumpRequest(c.Request, false)
-					logger.Printf("[Recovery] panic recovered:\n%s\n%s\n%s%s", string(httprequest), err, stack, reset)
+					logger.Printf("[Recovery] %s panic recovered:\n%s\n%s\n%s%s", timeFormat(time.Now()), string(httprequest), err, stack, reset)
 				}
 				c.AbortWithStatus(500)
 			}
@@ -107,3 +108,8 @@ func function(pc uintptr) []byte {
 	name = bytes.Replace(name, centerDot, dot, -1)
 	return name
 }
+
+func timeFormat(t time.Time) string {
+	var timeString = t.Format("2006/01/02 - 15:04:05")
+	return timeString
+}