1575332: Add add-cloud to juju help page
1575332: Add add-cloud to juju help page

I shortened the description from the actual
add-cloud command so that juju help did not
wrap for a terminal width of 80 characters.

howbazaar/juju,alesstimec/juju,mjs/juju,frankban/juju,macgreagoir/juju,macgreagoir/juju,ericsnowcurrently/juju,waigani/juju,ericsnowcurrently/juju,mikemccracken/juju,mjs/juju,dooferlad/juju,gabriel-samfira/juju,AdamIsrael/juju,bogdanteleaga/juju,frankban/juju,macgreagoir/juju,reedobrien/juju,kat-co/juju,gabriel-samfira/juju,mjs/juju,axw/juju,kat-co/juju,bz2/juju,bogdanteleaga/juju,bz2/juju,macgreagoir/juju,ericsnowcurrently/juju,axw/juju,gabriel-samfira/juju,bac/juju,anastasiamac/juju,marcmolla/juju,howbazaar/juju,marcmolla/juju,kat-co/juju,dooferlad/juju,mjs/juju,frankban/juju,mikemccracken/juju,AdamIsrael/juju,AdamIsrael/juju,kat-co/juju,howbazaar/juju,alesstimec/juju,frankban/juju,reedobrien/juju,marcmolla/juju,marcmolla/juju,reedobrien/juju,howbazaar/juju,perrito666/juju,axw/juju,AdamIsrael/juju,bogdanteleaga/juju,waigani/juju,dooferlad/juju,anastasiamac/juju,bogdanteleaga/juju,mjs/juju,waigani/juju,alesstimec/juju,dimitern/juju,ericsnowcurrently/juju,mikemccracken/juju,anastasiamac/juju,bz2/juju,bac/juju,kat-co/juju,reedobrien/juju,mikemccracken/juju,axw/juju,dimitern/juju,gabriel-samfira/juju,frankban/juju,dimitern/juju,mjs/juju,axw/juju,bz2/juju,alesstimec/juju,perrito666/juju,dooferlad/juju,bac/juju,howbazaar/juju,perrito666/juju,gabriel-samfira/juju,bac/juju,perrito666/juju,reedobrien/juju,alesstimec/juju,anastasiamac/juju,mjs/juju,bac/juju,bz2/juju,dimitern/juju,perrito666/juju,marcmolla/juju,mikemccracken/juju,anastasiamac/juju,waigani/juju,ericsnowcurrently/juju,dooferlad/juju,macgreagoir/juju,dimitern/juju