civicrm/civicrm-core — pull request #2204 by eileenmcnaughton (2013-12-12 05:20:21+00:00)
Title: CRM-13711 fix - Price-set validation break in noAmount and noLabel case ...

...for non Text type price field

http://issues.civicrm.org/jira/browse/CRM-13711

I think this should go in 4.4 as it is a clear bug, a probable regression with a very small & sensible seeming fix