Replace `(char *)0' et al with `NULL'.

None of them are vararg parameters.

diff --git a/uip/burst.c b/uip/burst.c
index 0cfb406..1429353 100644 (file)
--- a/uip/burst.c
+++ b/uip/burst.c
@@ -478,13 +478,13 @@ burst (struct msgs **mpp, int msgnum, struct smsg *smsgs, int numburst,
                admonish (f3, "unable to rename %s to", f1);
 
            (void)snprintf(f3, sizeof (f3), "%s/%d", maildir, i);
-           ext_hook("del-hook", f3, (char *)0);
+           ext_hook("del-hook", f3, NULL);
        }
        if (rename (f2, f1) == NOTOK)
            admonish (f1, "unable to rename %s to", f2);
 
        (void)snprintf(f3, sizeof (f3), "%s/%d", maildir, i);
-       ext_hook("add-hook", f3, (char *)0);
+       ext_hook("add-hook", f3, NULL);
 
        copy_msg_flags (mp, i, msgnum);
        mp->msgflags |= SEQMOD;