Add weekly logrotation of FTL's log (#1509)

advanced/logrotate

@@ -8,3 +8,14 @@
 	notifempty
 	nomail
 }
+
+/var/log/pihole-FTL.log {
+	# su #
+	weekly
+	copytruncate
+	rotate 3
+	compress
+	delaycompress
+	notifempty
+	nomail
+}

automated install/basic-install.sh

@@ -1080,7 +1080,7 @@ installLogrotate() {
   # the local properties of the /var/log directory
   logusergroup="$(stat -c '%U %G' /var/log)"
   if [[ ! -z $logusergroup ]]; then
-    sed -i "s/# su #/su ${logusergroup}/" /etc/pihole/logrotate
+    sed -i "s/# su #/su ${logusergroup}/g;" /etc/pihole/logrotate
   fi
   echo " done!"
 }