Fix typos in file.go

"retuns" => "returns"

pkging/file.go

@@ -14,7 +14,7 @@ type File interface {
 	// Info returns the here.Info of the file
 	Info() here.Info
 
-	// Name retuns the name of the file
+	// Name returns the name of the file
 	Name() string
 
 	// Open implements the http.FileSystem interface. A FileSystem implements access to a collection of named files. The elements in a file path are separated by slash ('/', U+002F) characters, regardless of host operating system convention.

pkging/mem/file.go

@@ -103,7 +103,7 @@ func (f File) Stat() (os.FileInfo, error) {
 	return f.info, nil
 }
 
-// Name retuns the name of the file in pkger format
+// Name returns the name of the file in pkger format
 func (f File) Name() string {
 	return f.path.String()
 }

pkging/stdos/file.go

@@ -29,7 +29,7 @@ func (f *File) Info() here.Info {
 	return f.her
 }
 
-// Name retuns the name of the file in pkger format
+// Name returns the name of the file in pkger format
 func (f File) Name() string {
 	return f.path.String()
 }