Spaces in parameter names aren't handled properly

[simpz]

If you have spaces in multi word parameters this module doesn't replace them, even though they perform an identical function.
You just end up with duplicate entries.

e.g.

passdb  backend = tdbsam

   map to guest = Never
   passdb backend = tdbsam

The original file had a double space between "passdb" and "backend", so they are treated as different options and you get a duplicate.

I have submitted a PR to handle idmap config, which is easier to handle around the colon:
https://github.com/rehanone/puppet-samba/pull/62/files