PIG-2507: Semicolon in paramenters for UDF results in parsing error (tnachen via daijy)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1457634 13f79535-47bb-0310-9956-ffa450edef68
Fix compilation error due to PIG-2507

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1457745 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of https://github.com/apache/pig into trunk