add puppet doc compatible comments to bugzilla module

add docs and make it find existing one by not having a newline
between comments and classes

this makes "puppet doc foo.pp" find things we then generate automagically
on http://doc.wikimedia.org

Change-Id: I6d19bb4f704d1084e77991a7f530e34bb6d80b15
Merge "add puppet doc compatible comments to bugzilla module" into production