//usage: "[-l] [-s] FILE1 [FILE2" IF_DESKTOP(" [SKIP1 [SKIP2]]") "]"
//usage:#define cmp_full_usage "\n\n"
//usage: "Compare FILE1 with FILE2 (or stdin)\n"
-//usage: "\nOptions:"
//usage: "\n -l Write the byte numbers (decimal) and values (octal)"
//usage: "\n for all differing bytes"
//usage: "\n -s Quiet"