Merge pull request #45707 from rzarzynski/wip-crimson-errorator-2nd-arg-handle

crimson/common: let errorator's handlers to conditionally forward errors

Reviewed-by: Sam Just <sjust@redhat.com>
                       liu-chunmei <chunmei.liu@intel.com>

diff --cc src/crimson/common/errorator.h
Simple merge