os: io_event.res is the size written

And not an error code to be converted with cpp_strerror()

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
test: minor case fix

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
mon: obsolete osdmonitor_prepare_command

And the mon_advanced_debug_mode option that is only used in the context
of osdmonitor_prepare_command.

http://tracker.ceph.com/issues/9245 Fixes: #9245

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
tests: remove tests requiring osdmonitor_prepare_command

Although they have been useful, their maintenance and fragility caused
more trouble than their benefits.

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
ceph-disk: bootstrap-osd keyring ignores --statedir

The STATEDIR variable is used to initialize the bootstrap-osd keyring
before it gets a chance to be overriden by --statedir. Replace it with
{statedir} so that it can be substituted after all options have been
parsed.

http://tracker.ceph.com/issues/9653 Fixes: #9653

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
tidy up the sources a little.
Merge branch 'master' of https://github.com/objoo/ceph