Revert "remove 'disown' command (unneeded)"

This reverts commit 741ece5b80.

etc/rc.d/rc.docker

@@ -613,6 +613,7 @@ case "$1" in
   docker_service_start
   docker_network_start
   docker_container_start &>/dev/null &
+  disown
   ;;
 'stop')
   docker_container_stop
@@ -632,6 +633,7 @@ case "$1" in
   docker_service_start
   docker_network_start
   docker_container_start &>/dev/null &
+  disown
   ;;
 'status')
   docker_status

sbin/monitor_interface

@@ -67,3 +67,4 @@ while :; do
   # check every 3 seconds
   sleep 3
 done &
+disown %%

sbin/monitor_nchan

@@ -71,3 +71,4 @@ while :; do
   # check every 30 seconds
   sleep 30
 done &
+disown %%