[commit] rev 183: Fix a bogus newline difference when running dvc-diff-ediff in mercurial repositories

Committed revision 183 to http://bzr.xsteve.at/dvc/

Fix a bogus newline difference when running dvc-diff-ediff in mercurial repositories

  Patch from Magnus Carlsson

  (xhg-revision-get-last-revision): Don't drop the final newline from the hg cat output