Fix for issue #3182 - Warns about blank owners in region file

Fixes http://youtrack.sk89q.com/issue/WORLDGUARD-3182

Issue creator had region file that contained a region with an owner ' '. This will log a warning with the problematic region, but continue anyway.
- reverse that if, so you have less negations in there
- insert spaces around that else.
- I don't remember what brace style we had, but go figure it out and apply it