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
```bash
vim $(grep -ril "module katello" . --exclude-dir=.git | uniq)
```

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