Make sure ipc functions return CS_ERR_TRY_AGAIN and not CS_ERR_TIMEOUT
This is because most applications that use corosync do not test
for TIMEOUT but only for TRY_AGAIN.
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
Reviewed-and-Tested-by: Fabio M. Di Nitto <fdinitto@redhat.com>