av0 134 user/testbin/psort/psort.c initprogname(const char *av0)
av0 136 user/testbin/psort/psort.c if (av0) {
av0 137 user/testbin/psort/psort.c progname = strrchr(av0, '/');
av0 142 user/testbin/psort/psort.c progname = av0;