Expire gnusocial posts monthly

src/freedombone

@@ -8979,7 +8979,7 @@ function expire_gnu_social_posts {
 
     # Add a cron job
     if ! grep -q "$gnusocial_expire_script" /etc/crontab; then
-        echo "10 3 *   *   *   root /usr/bin/timeout 500 /usr/bin/php $gnusocial_expire_script" >> /etc/crontab
+        echo "10 3 5   *   *   root /usr/bin/timeout 500 /usr/bin/php $gnusocial_expire_script" >> /etc/crontab
     fi
 
     # remove old expire script