check_param_count  890 contrib/libtests/makepng.c    check_param_count(nparams, 2);
check_param_count 1033 contrib/libtests/makepng.c    check_param_count(nparams, 2);
check_param_count 1044 contrib/libtests/makepng.c    check_param_count(nparams, 2);
check_param_count 1056 contrib/libtests/makepng.c    check_param_count(nparams, 4);