PIG-3495: Streaming udf e2e tests failures on Windows

git-svn-id: https://svn.apache.org/repos/asf/pig/branches/branch-0.12@1528951 13f79535-47bb-0310-9956-ffa450edef68
PIG-3470: Print configuration variables in grunt

git-svn-id: https://svn.apache.org/repos/asf/pig/branches/branch-0.12@1528954 13f79535-47bb-0310-9956-ffa450edef68