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This patch resolved a minor issue spotted by Coverity:a983d36bd9(gnulib/regexec: Resolve unused variable) But, it was removed by the Gnulib update:2b79024598(Update gnulib version and drop most gnulib patches) It caused Coverity to continue to flag the issue. Daniel Kiper suggested to bring back the patcha983d36bd9(gnulib/regexec: Resolve unused variable). Fixes: CID 292459 Signed-off-by: Lidong Chen <lidong.chen@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>