fix vim format line

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@833 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/openzap/src/include/zap_threadmutex.h

@@ -46,6 +46,6 @@ OZ_DECLARE(zap_status_t) _zap_mutex_unlock(zap_mutex_t *mutex);
  * c-basic-offset:4
  * End:
  * For VIM:
- * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4:
  */