src/libpcp_qed/src/qed_groupcontrol.cpp: make all console->post() calls consistent
src/libpcp_qed/src/qed_groupcontrol.cpp: make all console->post() calls consistent

Within libpcp_qed, we're now using just the one variant, namely
    void post(const char *p, ...);

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