Update mm-scripts.sh

mm-scripts.sh

@@ -1400,9 +1400,13 @@ USAGE(){
 	echo
 	srvcsavail="$(join_by , ${MM_SERVICES})"
 	echo "'${srvcsavail}'"
-	srvcscheck=${SERVICESCHECK//,/, }
-	srvcscheck=${srvcscheck/snap.tautulli.tautulli/tautulli}
-	srvcscheck=${srvcscheck/snap.overseerr.daemon/overseerr}
+	if [ "${srvcsavail}" != "" ]; then
+		srvcscheck=${SERVICESCHECK//,/, }
+		srvcscheck=${srvcscheck/snap.tautulli.tautulli/tautulli}
+		srvcscheck=${srvcscheck/snap.overseerr.daemon/overseerr}
+	else
+		srvcscheck="None"
+	fi
 	echo -e "${idsCL[White]} Services Available: ${idsCL[Default]}"
 	echo
 	for srvc in "${AVAIL_SERVICES[@]}"; do