[XeTeX] Patch: Add an entry for stemv

[Petr Tomasek]

> 
> I'd like to suggest that a better approach is to have a configuration  
> file for xdvipdfmx (probably separate from the main .cfg file) that  
> simply lists font names and the stemv values you want to apply. This  

Hm, having configuration file for xdvipdfmx seems to me much more
ugly - it just increases the chances that something went misconfigured...

P.T.

-- 
Petr Tomasek <http://www.etf.cuni.cz/~tomasek>
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