Fix new st2ctl output in Docker
Fix new st2ctl output in Docker

Before:
root@115eccc93287:/# st2ctl restart
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
st2web: unrecognized service
/usr/sbin/service
mistral: unrecognized service
/usr/sbin/service
mistral-api: unrecognized service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
/usr/sbin/service
st2web: unrecognized service
/usr/sbin/service
mistral: unrecognized service
/usr/sbin/service
mistral-api: unrecognized service

Plexxi/st2,lakshmi-kannan/st2,StackStorm/st2,Plexxi/st2,punalpatel/st2,punalpatel/st2,Plexxi/st2,lakshmi-kannan/st2,StackStorm/st2,nzlosh/st2,peak6/st2,pixelrebel/st2,pixelrebel/st2,peak6/st2,nzlosh/st2,dennybaa/st2,lakshmi-kannan/st2,tonybaloney/st2,emedvedev/st2,StackStorm/st2,pixelrebel/st2,tonybaloney/st2,nzlosh/st2,nzlosh/st2,emedvedev/st2,dennybaa/st2,Plexxi/st2,StackStorm/st2,dennybaa/st2,emedvedev/st2,punalpatel/st2,peak6/st2,tonybaloney/st2