log a warning on recovery of old recovery codes

darcs-hash:20080930124452-5ed1f-31cc4ff18994880f9ab36b57cdfc6d9fb19b99d1.gz

actions/recoverpassword.php

@@ -85,6 +85,9 @@ class RecoverpasswordAction extends Action {
 		# Note: it's still deleted; let's avoid a second attempt!
 
 		if ((time() - $touched) > MAX_RECOVERY_TIME) {
+			common_log(LOG_WARNING, 
+					   'Attempted redemption on recovery code ' .
+					   'that is ' . $touched . ' seconds old. ');
 			$this->client_error(_('This confirmation code is too old. ' .
 			                       'Please start again.'));
 			return;