PIG-3414: QueryParserDriver.parseSchema(String) silently returns a wrong result when a comma is missing in the schema definition (cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1512521 13f79535-47bb-0310-9956-ffa450edef68
Revert PIG-3414 (TestSchema is broken)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1512531 13f79535-47bb-0310-9956-ffa450edef68