fixing katello module indentation in all files

once katello became an engine in foreman, we had to namespace most of
katello stuff inside a `katello` module to avoid naming conflicts with
foreman, etc.

i doubt adding the katello module to each file was done by hand, but
rather accomplished with a script of some kind. unfortunately this broke
the indentation for any file that had the module added to it. this
commit should correct those files' indentation.

i used vim to do it. it was quite simple once i figured out how to get
vim to execute a command on every open buffer at once.

open all the files in vim
$ vim $(grep -ril "module katello" . --exclude-dir=.git | uniq)

here's the magic
:bufdo execute "normal gg=G" | write | quit