qa/src/pmcdgone.c: remove one last system() compilation warning
qa/src/pmcdgone.c: remove one last system() compilation warning

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp