Set encoding so diffs are reported correctly

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1631422 13f79535-47bb-0310-9956-ffa450edef68
Trivial change to test diffs

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1631423 13f79535-47bb-0310-9956-ffa450edef68