Merge pull request #3109 from Jeff885/Jeff885-patch-1

When log maxSize set big int，FileWrite Init fail

logs/multifile.go

@@ -67,7 +67,10 @@ func (f *multiFileLogWriter) Init(config string) error {
 				jsonMap["level"] = i
 				bs, _ := json.Marshal(jsonMap)
 				writer = newFileWriter().(*fileLogWriter)
-				writer.Init(string(bs))
+				err := writer.Init(string(bs))
+				if err != nil {
+					return err
+				}
 				f.writers[i] = writer
 			}
 		}