maint: remove unused parameters to parse_user_spec()

* src/chown.c (main): Since "name" parameters to parse_user_spec()
are now optional, just pass NULL for those unused parameters.
* src/chroot.c (main): Likewise.

2 files changed, 2 insertions, 8 deletions

diff --git a/src/chown.c b/src/chown.c
index 9db0a569b..375917856 100644
--- a/src/chown.c
+++ b/src/chown.c
@@ -226,10 +226,9 @@ main (int argc, char **argv)
 
         case FROM_OPTION:
           {
-            char *u_dummy, *g_dummy;
             const char *e = parse_user_spec (optarg,
                                              &required_uid, &required_gid,
-                                             &u_dummy, &g_dummy);
+                                             NULL, NULL);
             if (e)
               error (EXIT_FAILURE, 0, "%s: %s", e, quote (optarg));
             break;
diff --git a/src/chroot.c b/src/chroot.c
index b77a8bf66..89fd3920e 100644
--- a/src/chroot.c
+++ b/src/chroot.c
@@ -229,16 +229,11 @@ main (int argc, char **argv)
     {
       uid_t uid = -1;
       gid_t gid = -1;
-      char *user;
-      char *group;
-      char const *err = parse_user_spec (userspec, &uid, &gid, &user, &group);
+      char const *err = parse_user_spec (userspec, &uid, &gid, NULL, NULL);
 
       if (err)
         error (EXIT_CANCELED, errno, "%s", err);
 
-      free (user);
-      free (group);
-
       if (groups && set_additional_groups (groups))
         fail = true;