cron.c patch

[Edgar Pettijohn III]

I'm guessing the if block will never hit since listen returns either 0 
or -1.

Index: cron.c

===================================================================
RCS file: /cvs/src/usr.sbin/cron/cron.c,v
retrieving revision 1.77
diff -u -p -u -r1.77 cron.c
--- cron.c      23 Oct 2017 15:15:22 -0000      1.77
+++ cron.c      20 Oct 2018 23:27:46 -0000
@@ -462,7 +462,7 @@ open_socket(void)
                syslog(LOG_ERR, "(CRON) DEATH (can't bind socket)");
                exit(EXIT_FAILURE);
        }
-       if (listen(sock, SOMAXCONN)) {
+       if (listen(sock, SOMAXCONN) != 0) {
                warn("listen");
                syslog(LOG_ERR, "(CRON) DEATH (can't listen on socket)");
                exit(EXIT_FAILURE);
*
*