rails/rails — pull request #9221 by thenickcox (2013-02-08 07:12:08+00:00)
Title: Improve img alt attribute for screen readers

Currently, the img_alt method in ActionView maintains underscores
in the alt attribute. Because underscores are pronounced in
Apple's VoiceOver Utility, this has serious implications for
accessibility. This patch makes underscored or hyphenated file
names (both common in projects) read more naturally in screen
readers.