Index: includes/cache.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/cache.inc,v
retrieving revision 1.17.2.1
diff -u -p -r1.17.2.1 cache.inc
--- includes/cache.inc	27 Apr 2009 14:23:58 -0000	1.17.2.1
+++ includes/cache.inc	21 May 2009 02:17:04 -0000
@@ -155,7 +155,7 @@ function cache_clear_all($cid = NULL, $t
         variable_set('cache_flush_'. $table, time());
       }
       else if (time() > ($cache_flush + variable_get('cache_lifetime', 0))) {
-        // Clear the cache for everyone, cache_flush_delay seconds have
+        // Clear the cache for everyone, cache_lifetime seconds have
         // passed since the first request to clear the cache.
         db_query("DELETE FROM {". $table ."} WHERE expire != %d AND expire < %d", CACHE_PERMANENT, time());
         variable_set('cache_flush_'. $table, 0);