Log Message:
-----------
Slight refactoring and optimization of some code in WaitOnLock().
Modified Files:
--------------
pgsql/src/backend/storage/lmgr:
lock.c (r1.147 -> r1.148)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/lmgr/lock.c.diff?r1=1.147&r2=1.148)