tigefa Redmine

Commit [r10428] Maximize Restore History

use git diff format for all diff (#11868)

Mercurial diff uses git format.

Authored by: tmaruyama 2012-09-19

changed	/trunk/lib/redmine/unified_diff.rb
changed	/trunk/test/functional/repositories_mercurial_controller_test.rb
changed	/trunk/test/unit/lib/redmine/unified_diff_test.rb