fix typo of app/models/repository/cvs.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@13128 e93f8b46-1217-0410-a6f0-8f06a7374b81
fix typo of app/models/repository/mercurial.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@13129 e93f8b46-1217-0410-a6f0-8f06a7374b81