Fix StackTrace print example

bep · web-flow · commit 6ed0a2e59ebe · 2018-10-14T16:58:47.000+02:00
diff --git a/errors.go b/errors.go
@@ -82,7 +82,7 @@
 //
 //     if err, ok := err.(stackTracer); ok {
 //             for _, f := range err.StackTrace() {
-//                     fmt.Printf("%+s:%d", f)
+//                     fmt.Printf("%+s:%d\n", f, f)                    
 //             }
 //     }
 //
