[r=jameinel],[bug=1229480] environs/openstack: fix hpcloud description
[r=jameinel],[bug=1229480] environs/openstack: fix hpcloud description

Same fix for bug #1229480 that landed on the 1.14 branch, but fixing
it in 1.15 requires submitting it for review again.

https://codereview.appspot.com/14272043/
wwitzel3/juju,marcoceppi/juju,gabriel-samfira/juju,mattyw/juju,mikemccracken/juju,dooferlad/juju,reedobrien/store,howbazaar/juju,AdamIsrael/juju,tsakas/juju,frobware/juju,alesstimec/juju,tasdomas/juju,ericsnowcurrently/juju,mhilton/juju-juju,tych0/juju,howbazaar/juju,gabriel-samfira/juju,frobware/juju,dooferlad/juju,thomnico/juju,mjs/juju,frankban/juju,frankban/juju,axw/juju,frankban/juju,dimitern/juju,gabriel-samfira/juju,marcoceppi/juju,Altoros/juju-vmware,reedobrien/juju,dooferlad/juju,cherylj/juju,anastasiamac/juju,alesstimec/juju,howbazaar/juju,bogdanteleaga/juju,macgreagoir/juju,jrwren/juju,fwereade/juju,reedobrien/juju,kat-co/juju,bogdanteleaga/juju,fwereade/juju,dimitern/juju,howbazaar/juju,mhilton/juju-juju,makyo/juju,kat-co/juju,alesstimec/juju,alesstimec/juju,bac/juju,gabriel-samfira/juju,mattyw/juju,mjs/juju,kat-co/juju,ericsnowcurrently/juju,marcmolla/juju,reedobrien/juju,frankban/juju-tmp,waigani/juju,jrwren/juju,ericsnowcurrently/juju,tasdomas/juju,mattyw/juju,makyo/juju,mikemccracken/juju,marcmolla/juju,cherylj/juju,marcmolla/juju,anastasiamac/juju,cherylj/juju,sinzui/juju,tych0/juju,Altoros/juju-cloudsigma,macgreagoir/juju,sinzui/juju,axw/juju,mjs/juju,dimitern/juju,mhilton/juju-juju,mhilton/juju,bogdanteleaga/juju,bz2/juju,cloud-green/juju,fwereade/juju,davecheney/juju,tsakas/juju,bz2/juju,voidspace/juju,Altoros/juju-cloudsigma,bac/juju,tych0/juju,fwereade/juju,gabriel-samfira/juju,rogpeppe/juju,voidspace/juju,davecheney/juju,perrito666/juju,frankban/juju,wwitzel3/juju,mikemccracken/juju,bogdanteleaga/juju,jrwren/juju,frankban/juju-tmp,thomnico/juju,mhilton/juju,axw/juju,perrito666/juju,mhilton/juju,wwitzel3/juju,mjs/juju,waigani/juju,cmars/juju,tych0/juju,axw/juju,Altoros/juju-vmware,macgreagoir/juju,frankban/juju-tmp,mhilton/juju,tasdomas/juju,mjs/juju,marcoceppi/juju,bac/juju,AdamIsrael/juju,cmars/juju,voidspace/juju,AdamIsrael/juju,rogpeppe/juju,waigani/juju,marcoceppi/juju,reedobrien/juju,mikemccracken/juju,Altoros/juju-cloudsigma,wwitzel3/juju,cloud-green/juju,dooferlad/juju,macgreagoir/juju,marcmolla/juju,bac/juju,marcmolla/juju,frankban/juju,tsakas/juju,bz2/juju,frankban/juju-tmp,mjs/juju,mikemccracken/juju,perrito666/juju,tasdomas/juju,cmars/juju,dimitern/juju,bz2/juju,mattyw/juju,cmars/juju,waigani/juju,sinzui/juju,ericsnowcurrently/juju,voidspace/juju,cloud-green/juju,dooferlad/juju,davecheney/juju,reedobrien/juju,cloud-green/juju,AdamIsrael/juju,dimitern/juju,sinzui/juju,rogpeppe/juju,tsakas/juju,cherylj/juju,thomnico/juju,anastasiamac/juju,alesstimec/juju,axw/juju,perrito666/juju,anastasiamac/juju,mjs/juju,davecheney/juju,kat-co/juju,macgreagoir/juju,kat-co/juju,anastasiamac/juju,frobware/juju,Altoros/juju-vmware,bac/juju,ericsnowcurrently/juju,Altoros/juju-cloudsigma,howbazaar/juju,perrito666/juju,bz2/juju,makyo/juju,mhilton/juju-juju,makyo/juju,thomnico/juju,Altoros/juju-vmware