Run crond with -s to turn off trying to send mail

This keeps the logfile from filling up with messages about crond not
being able to send mail or not finding `esmtprc`.

Author: matyasselmeci

crond_startup.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
 if [ $(id -u) != 0 ]; then
-    exec /usr/bin/fakeroot-sysv /usr/sbin/crond -n
+    exec /usr/bin/fakeroot-sysv /usr/sbin/crond -n -s
 fi
-exec /usr/sbin/crond -n
+exec /usr/sbin/crond -n -s