upstart issue

# start app01
...
4     0 16465     1  20   0  64544  1772 wait   Ss   ?          0:00 su - app -c cd /opt/apps/app01; bundle exec bin/app01 -p $PORT >> /var/log/app01/cmd-1.log 2>&1
4   500 16469 16465  20   0 109388  2836 wait   Ss   ?          0:00  \_ -bash -c cd /opt/apps/app01; bundle exec bin/app01 -p $PORT >> /var/log/app01/cmd-1.log 2>&1
0   500 16526 16469  20   0 205376 24016 poll_s Sl   ?          0:00      \_ ruby bin/app01 -p 9876

# stop app01
...
0   500 16526     1  20   0 205376 24016 poll_s Sl   ?          0:00 ruby bin/app01 -p 9876