rails/rails — pull request #4311 by kuroda (2012-01-05 02:14:36+00:00)
Title: Infer currency negative format from positive one. (3-2-stable)

When a locale file sets the format of the positive
currency value as '%n %u', the default negative
currency format should be '-%n %u'.

Cherry-picked from master (6724c8c8)