[O] exported dates in ox-rss.el

[Andrea Rossetti]

Hello everyone,
 
  I played a bit with the RSS export (contrib/lisp/ox-rss.el),
and found that the dates in the emitted output lack the month name:
<pubDate>Sat, 05  2013 15:44:49 +0200</pubDate> (the month "Oct"
is missing).

  It turned out that the date format specifier "%h" is not
accepted by the runtime (MSVCRT.DLL) of my Windows installation
(a plain Windows 7 64 bit from year 2009). 

  I resolved my personal problem by simply replacing "%h"->"%b"
in my ox-rss.el, but may I please ask to good-willed Windows+Emacs
users around if they face the same issue (or if it's just me).

  Here is a simple test: open an empty buffer and type:

(format-time-string "day: %d, month: %h, year: %y")
C-x C-e wrongly returns "day: 06, month: , year: 13"

(format-time-string "day: %d, month: %b, year: %y")
C-x C-e returns "day: 06, month: Oct, year: 13"

  Thanks in advance, kindest regards.

  Andrea Rossetti
  http://github.com/thesoftwarebin