Fix typo

src/backend/storage/lmgr/lwlock.c

@@ -1187,7 +1187,7 @@ LWLockAcquire(LWLock *lock, LWLockMode mode)
 		 * Instead add us to the queue and try to grab the lock again. If we
 		 * succeed we need to revert the queuing and be happy, otherwise we
 		 * recheck the lock. If we still couldn't grab it, we know that the
-		 * other lock will see our queue entries when releasing since they
+		 * other locker will see our queue entries when releasing since they
 		 * existed before we checked for the lock.
 		 */