Document check_list's return value.

diff --git a/src/gpasswd.c b/src/gpasswd.c
index cc04b288dfbb0f0b7f587914475796edccdd7d4d..960e54c6d50d37424b8312420187493cad1ef7ed 100644 (file)
--- a/src/gpasswd.c
+++ b/src/gpasswd.c
@@ -150,6 +150,8 @@ static RETSIGTYPE catch_signals (int killed)
  *
  *     check_list scans a comma-separated list of user names and checks
  *     that each listed name exists.
+ *
+ *     It returns 0 on success.
  */
 static int check_list (const char *users)
 {