[r=axwalk] provider/local: qualify pkill jujud with home dir
[r=axwalk] provider/local: qualify pkill jujud with home dir

When local was changed to use common code for
bootstrap and destroy, destroy regressed and
would destroy any jujud running on the machine.
This CL fixes it by only killing the jujud that
is located in the environment's data-dir.

https://codereview.appspot.com/61820043/
Altoros/juju-cloudsigma,waigani/juju,marcmolla/juju,voidspace/juju,axw/juju,makyo/juju,axw/juju,anastasiamac/juju,tsakas/juju,howbazaar/juju,wwitzel3/juju,jrwren/juju,mhilton/juju,Altoros/juju-vmware,mikemccracken/juju,mhilton/juju,mikemccracken/juju,cmars/juju,frankban/juju-tmp,mikemccracken/juju,fwereade/juju,frobware/juju,alesstimec/juju,howbazaar/juju,bz2/juju,makyo/juju,gabriel-samfira/juju,mhilton/juju,bz2/juju,davecheney/juju,kat-co/juju,voidspace/juju,sinzui/juju,mjs/juju,wwitzel3/juju,makyo/juju,dimitern/juju,cloud-green/juju,cherylj/juju,thomnico/juju,fwereade/juju,frankban/juju,tych0/juju,gabriel-samfira/juju,tsakas/juju,wwitzel3/juju,frankban/juju,howbazaar/juju,bac/juju,tasdomas/juju,AdamIsrael/juju,Altoros/juju-cloudsigma,cloud-green/juju,cloud-green/juju,reedobrien/juju,mattyw/juju,bz2/juju,wwitzel3/juju,makyo/juju,reedobrien/juju,davecheney/juju,macgreagoir/juju,macgreagoir/juju,dimitern/juju,fwereade/juju,ericsnowcurrently/juju,waigani/juju,waigani/juju,frankban/juju,frankban/juju-tmp,dooferlad/juju,davecheney/juju,cherylj/juju,Altoros/juju-vmware,frobware/juju,kat-co/juju,marcoceppi/juju,macgreagoir/juju,tych0/juju,mattyw/juju,bac/juju,tsakas/juju,marcoceppi/juju,perrito666/juju,thomnico/juju,dooferlad/juju,dooferlad/juju,mhilton/juju,thomnico/juju,bz2/juju,marcmolla/juju,alesstimec/juju,anastasiamac/juju,anastasiamac/juju,mhilton/juju-juju,tasdomas/juju,macgreagoir/juju,anastasiamac/juju,cloud-green/juju,AdamIsrael/juju,dimitern/juju,reedobrien/juju,bz2/juju,Altoros/juju-vmware,frankban/juju-tmp,mjs/juju,alesstimec/juju,marcmolla/juju,frankban/juju,mikemccracken/juju,macgreagoir/juju,ericsnowcurrently/juju,rogpeppe/juju,reedobrien/juju,marcmolla/juju,rogpeppe/juju,cmars/juju,tych0/juju,sinzui/juju,alesstimec/juju,marcoceppi/juju,bac/juju,rogpeppe/juju,Altoros/juju-vmware,mattyw/juju,fwereade/juju,davecheney/juju,waigani/juju,bogdanteleaga/juju,Altoros/juju-cloudsigma,perrito666/juju,jrwren/juju,perrito666/juju,mjs/juju,gabriel-samfira/juju,gabriel-samfira/juju,reedobrien/juju,tych0/juju,jrwren/juju,axw/juju,mjs/juju,cherylj/juju,Altoros/juju-cloudsigma,marcmolla/juju,howbazaar/juju,frobware/juju,mjs/juju,kat-co/juju,mhilton/juju-juju,sinzui/juju,sinzui/juju,frankban/juju,perrito666/juju,cmars/juju,kat-co/juju,bogdanteleaga/juju,cmars/juju,cherylj/juju,bogdanteleaga/juju,ericsnowcurrently/juju,axw/juju,tasdomas/juju,alesstimec/juju,bac/juju,bogdanteleaga/juju,voidspace/juju,kat-co/juju,tsakas/juju,gabriel-samfira/juju,mhilton/juju-juju,dooferlad/juju,dimitern/juju,dooferlad/juju,howbazaar/juju,tasdomas/juju,mhilton/juju-juju,AdamIsrael/juju,reedobrien/store,AdamIsrael/juju,perrito666/juju,thomnico/juju,voidspace/juju,dimitern/juju,bac/juju,marcoceppi/juju,anastasiamac/juju,mikemccracken/juju,ericsnowcurrently/juju,ericsnowcurrently/juju,mattyw/juju,axw/juju,mjs/juju,frankban/juju-tmp,mjs/juju