Clarify a doc comment.
Clarify a doc comment.

thomnico/juju,marcmolla/juju,frankban/juju,davecheney/juju,mikemccracken/juju,Altoros/juju-cloudsigma,tych0/juju,davecheney/juju,wwitzel3/juju,bac/juju,thomnico/juju,marcmolla/juju,AdamIsrael/juju,ericsnowcurrently/juju,axw/juju,frankban/juju-tmp,anastasiamac/juju,marcmolla/juju,mhilton/juju,Altoros/juju-cloudsigma,mikemccracken/juju,sinzui/juju,dooferlad/juju,tasdomas/juju,mhilton/juju-juju,alesstimec/juju,howbazaar/juju,marcmolla/juju,frankban/juju,frankban/juju-tmp,mhilton/juju-juju,Altoros/juju-cloudsigma,voidspace/juju,bogdanteleaga/juju,tsakas/juju,perrito666/juju,bogdanteleaga/juju,mjs/juju,ericsnowcurrently/juju,voidspace/juju,mjs/juju,reedobrien/juju,cmars/juju,davecheney/juju,mhilton/juju-juju,dooferlad/juju,ericsnowcurrently/juju,frankban/juju,macgreagoir/juju,mikemccracken/juju,dimitern/juju,mhilton/juju,cmars/juju,wwitzel3/juju,dooferlad/juju,mjs/juju,perrito666/juju,anastasiamac/juju,waigani/juju,axw/juju,cherylj/juju,mhilton/juju-juju,waigani/juju,fwereade/juju,thomnico/juju,makyo/juju,cloud-green/juju,tasdomas/juju,alesstimec/juju,tsakas/juju,axw/juju,mikemccracken/juju,kat-co/juju,mjs/juju,fwereade/juju,dooferlad/juju,frankban/juju-tmp,axw/juju,howbazaar/juju,cmars/juju,gabriel-samfira/juju,dimitern/juju,reedobrien/juju,kat-co/juju,reedobrien/juju,bz2/juju,cloud-green/juju,bac/juju,kat-co/juju,cherylj/juju,bac/juju,bogdanteleaga/juju,voidspace/juju,howbazaar/juju,gabriel-samfira/juju,alesstimec/juju,kat-co/juju,cloud-green/juju,kat-co/juju,tych0/juju,ericsnowcurrently/juju,perrito666/juju,makyo/juju,frankban/juju,macgreagoir/juju,mhilton/juju,tych0/juju,macgreagoir/juju,mjs/juju,tsakas/juju,anastasiamac/juju,AdamIsrael/juju,anastasiamac/juju,axw/juju,sinzui/juju,ericsnowcurrently/juju,bac/juju,wwitzel3/juju,cherylj/juju,AdamIsrael/juju,makyo/juju,voidspace/juju,tasdomas/juju,fwereade/juju,bogdanteleaga/juju,reedobrien/juju,macgreagoir/juju,wwitzel3/juju,mjs/juju,waigani/juju,bz2/juju,mikemccracken/juju,AdamIsrael/juju,davecheney/juju,anastasiamac/juju,bz2/juju,howbazaar/juju,bz2/juju,cloud-green/juju,frankban/juju-tmp,dimitern/juju,gabriel-samfira/juju,alesstimec/juju,cmars/juju,dimitern/juju,marcmolla/juju,reedobrien/juju,howbazaar/juju,macgreagoir/juju,mjs/juju,gabriel-samfira/juju,thomnico/juju,makyo/juju,waigani/juju,tych0/juju,dooferlad/juju,tasdomas/juju,gabriel-samfira/juju,cherylj/juju,bac/juju,bz2/juju,perrito666/juju,Altoros/juju-cloudsigma,sinzui/juju,sinzui/juju,mhilton/juju,alesstimec/juju,frankban/juju,fwereade/juju,dimitern/juju,tsakas/juju,perrito666/juju