fix typo of .travis.yml

git-svn-id: http://svn.redmine.org/redmine/trunk@12666 e93f8b46-1217-0410-a6f0-8f06a7374b81
svn propset svn:eol-style native .travis.yml


git-svn-id: http://svn.redmine.org/redmine/trunk@12667 e93f8b46-1217-0410-a6f0-8f06a7374b81