rem: printf("usage: %s [-cutbuffer number] [filename]\n", progn);
add: fprintf ( stderr, "usage: %s [options] [filename]\n" "	-display display\n" "	-cutbuffer number\n" "	-nolimit\n" "	-clearselection\n", progn );
context: help(char *progn){    printf("usage: %s [-cutbuffer number] [filename]\n", progn);}