bug#15816: 24.3; (format-time-string "%h") returns "" instead of month

[Eli Zaretskii]

> From: andrea.rossetti@gmail.com
> Date: Wed, 06 Nov 2013 01:05:45 +0100
> 
>   when I execute 
> 
> (format-time-string "%h")
> 
> I get a return value of "" instead of "nov" meaning
> November, the current date month. On the contrary,
> execution of
> 
> (format-time-string "%b")
> 
> correctly returns "nov". I suppose this is
> due to the runtime of my Windows installation
> (an ordinary Windows 7 64-bit) not supporting
> C99 format modifiers of the C function "strftime".

Indeed, Windows version of strftime doesn't support %h.

>   If it affects other users too, my suggestion is to
> simply add a note in the docstring of format-time-string,
> saying that modifier "%h" requires a C99-compliant
> runtime. 

Done.