mbostock/d3 — pull request #495 by jwhitley (2012-02-08 01:03:33+00:00)
Title: Add new '%s' format to d3.time.format for the ordinal date suffix.

This change adds a new `%s` format to d3.time.format which prints the English ordinal suffix of the formatted date.

For example, `d3.time.format("%b %e%s")` used to format 01 Jan 1990 would output `Jan 1st`.