Add support to for "-n" to cmp in order to compare at most n bytes.
function old new delta
cmp_main 552 589 +37
.rodata 104198 104203 +5
packed_usage 34102 34074 -28
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(add/remove: 0/0 grow/shrink: 2/1 up/down: 42/-28) Total: 14 bytes
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>