set language en to test_label_for at test/unit/query_test.rb
Test on CI Server fails.
http://www.redmine.org/builds/logs/build_trunk_sqlite3_ruby-1.9.3-p194_581.html
<pre> Failure: <"Assignee">("US-ASCII") expected but was <"Assigné à">("UTF-8"). test_label_for(QueryTest) test/unit/query_test.rb:860:in `test_label_for' </pre>
Authored by: tmaruyama 2012-09-01
Parent: [r10248]
Child: [r10250]
