try to fix formatting issue

49b8d93d · Marc Rene Arns · b8b541dd · 49b8d93d
Commit 49b8d93d authored 6 years ago by Marc Rene Arns
--- a/smf/smfreader/doc.go
+++ b/smf/smfreader/doc.go
@@ -50,7 +50,7 @@ Usage

 	smfreader.ReadFile("file.mid", readMIDI)

-  if err != smf.ErrFinished {
+	if err != smf.ErrFinished {
 	   // real error happend
 	}