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This change avoids printing blank lines when the Impala shell fetches 0 rows from a statement. Change-Id: I6e18ce36be07ee90a16b007b1e30d5255ef8a839 Reviewed-on: http://gerrit.cloudera.org:8080/7055 Reviewed-by: Alex Behm <alex.behm@cloudera.com> Tested-by: Impala Public Jenkins