mon: fix raw use of *_dout in sync_requester_abort()

Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 8a4ed58e39b287fd8667c62b45848487515bdc80)
mon: more fix dout use in sync_requester_abort()

Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit d60534b8f59798feaeeaa17adba2a417d7777cbf)