sirius-suite/regex/pthread/slre.cpp: reduce scope of vars
sirius-suite/regex/pthread/slre.cpp: reduce scope of vars

Signed-off-by: Danny Al-Gaaf <473e39ac77cf392f0dd9bacde8409de76c14d006@bisect.de>

claritylab/sirius,claritylab/sirius,claritylab/sirius,claritylab/sirius,hoehnp/sirius,hoehnp/sirius,hoehnp/sirius,claritylab/sirius,hoehnp/sirius,claritylab/sirius,hoehnp/sirius,hoehnp/sirius,claritylab/sirius,hoehnp/sirius