Fix the way bash completion is handled

Also removes set executable bit, fixes indentation, removes unused versionator import.

This makes https://github.com/ldc-developers/ldc/commit/40926eaba5bf38c8e5f289b9bf7c2a9b1e09bf43 unneeded (IMO shouldn't have been added in the first place.)
I added the extra line to the 9999 ebuild in case it gets reverted.