Update monitor_nchan

sbin/monitor_nchan

@@ -15,7 +15,8 @@ while :; do
       # steady state?
       subs=$(curl --unix-socket $nginx $status 2>/dev/null|grep -Pom1 'subscribers: \K\d+')
       if [[ -z $subs || $subs -eq 0 ]]; then
-        # kill GUI registered nchan processes
+       logger -t monitor "Stop running nchan processes"
+       # kill GUI registered nchan processes
         while IFS=$'\n' read -r running; do
           pkill -f $docroot/${running/:stop/}
         done < $nchan_pid
@@ -27,3 +28,4 @@ while :; do
   # check every 30 seconds
   sleep 30
 done &
+disown %%