include: unset std::hex after printing CompatSet

include: unset std::hex after printing CompatSet

Otherwise you see this in debug output:

    $ ceph fs dump
    ...
    standby_count_wanted    0
    [mds.d{0:4375} state up:standby-replay seq 1 addr [v2:127.0.0.1:6830/2171112379,v1:127.0.0.1:6831/2171112379] compat {c=[1],r=[1],i=[7ff]}]

    Standby daemons:

    [mds.b{ffffffff:110a} state up:standby seq 1 addr [v2:127.0.0.1:1aab/d4c5b653,v1:127.0.0.1:1aad/d4c5b653] compat {c=[1],r=[1],i=[7ff]}]

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 9785a3623190b6491f88181ba6b6a876d3949d5e)