bug#22498: cmp man page too sophisticated

[積丹尼 Dan Jacobson]

Man cmp:
       -i, --ignore-initial=SKIP
              skip first SKIP bytes of both inputs

       -i, --ignore-initial=SKIP1:SKIP2
              skip first SKIP1 bytes of FILE1 and first SKIP2 bytes of FILE2
I would say:

       -i SKIP, --ignore-initial=SKIP
              skip first SKIP bytes of both inputs

       -i SKIP1:SKIP2, --ignore-initial=SKIP1:SKIP2
              skip first SKIP1 bytes of FILE1 and first SKIP2 bytes of FILE2

I mean if the user was smart enough to figure that out, he probably
wouldn't be reading the man page anyway.