do not rename inuse files

pkg/passwd/passwd.go

@@ -133,6 +133,8 @@ func (p *Passwd) Write(passwdFile string) error {
 }
 
 func writePasswords(passwdFile string, records [][]string) error {
+	err := func() error {
+		// ensure to close tmp file before rename for filesystems like NTFS
 		out, err := os.Create(passwdFile + ".tmp")
 		if err != nil {
 			return err
@@ -143,7 +145,9 @@ func writePasswords(passwdFile string, records [][]string) error {
 			return err
 		}
 
-	if err := csv.NewWriter(out).WriteAll(records); err != nil {
+		return csv.NewWriter(out).WriteAll(records)
+	}()
+	if err != nil {
 		return err
 	}