CRM-12978 add missing 2nd arguments in civicrm_check_permissions

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* CRM-12978: Access denied for self-service recurring contribution URLs in WordPress
  http://issues.civicrm.org/jira/browse/CRM-12978
Merge pull request #23 from davecivicrm/CRM-12978

CRM-12978 add missing 2nd arguments in civicrm_check_permissions