winecfg: Specify a context for the 'Letter' paper format.

[Francois Gouget]

[...]
> -    IDS_COL_DRIVELETTER         "Letter"
> +    IDS_COL_DRIVELETTER         "#msgctxt#Paper format#Letter"

Doh! Octavian is right. This is a drive letter, not paper size. 
Not sure why as soon as I saw winecfg I thought 'oh, the paper size' 
and remained stuck on it.

-- 
Francois Gouget <fgouget at free.fr>              http://fgouget.free.fr/
  Good judgment comes from experience, and experience comes from bad judgment
                               -- Barry LePatner