CMake: Fix the comment about versions. [skip ci]

[tcpdump] / tests / ipv6-srh-insert-cksum.out

    1  2018-11-22 17:59:40.591932 IP6 (flowlabel 0x8f8b8, hlim 64, next-header Routing (43), payload length 1088) 12::1 > 2::f1:0: RT6 (len=6, type=4, segleft=2, last-entry=2, flags=0x0, tag=0, [0]b2::2, [1]3::d6, [2]2::f1:0) 57745 > 5001: [udp sum ok] UDP, length 1024