improve cli error messages by lowering backtracking to 1
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Key: HIVE-95
URL: https://issues.apache.org/jira/browse/HIVE-95
Project: Hadoop Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Pete Wyckoff
Stop antlr from backtracking so much should (and does) improve error messages
since antlr will report the error closer to where it happened.
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