Finish open coverage.

1 files changed, 2 insertions, 2 deletions

diff --git a/os.go b/os.go
index ab415a9..f8945bf 100644
--- a/os.go
+++ b/os.go
@@ -5,14 +5,14 @@ import (
 )
 
 type _os interface {
-	OpenFile(name string, flag int, perm os.FileMode) (file *os.File, err error)
+	OpenFile(name string, flag int, perm os.FileMode) (file file, err error)
 	Stat(name string) (fi os.FileInfo, err error)
 	Getpagesize() int
 }
 
 type sysos struct{}
 
-func (o *sysos) OpenFile(name string, flag int, perm os.FileMode) (file *os.File, err error) {
+func (o *sysos) OpenFile(name string, flag int, perm os.FileMode) (file file, err error) {
 	return os.OpenFile(name, flag, perm)
 }