clm.c:
defect 637
Fix saClmFinalize will block with threads

BKrev: 42b31ad2mqut41t3GjnF-5BmQYDkOA


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@693 fd59a12c-fef9-0310-b244-a6a79926bd2f