civicrm/civicrm-core — pull request #3538 by totten (2014-06-21 03:39:24+00:00)
Title: CRM-14224 - CRM_Upgrade_Incremental_php_FourFour - Fix isValidWordReplacement()

The conditional was incorrect -- most likely an incomplete refactoring from
(eg isInvalid => isValid).