[PATCH 2/4] gdi32: fetch child fonts by real parent font name

[Paul TBBle Hampson]

This patch fixes bug 18044.

Basically, the built-in FontLink functionality for subsituting
alternative fonts where a certain font is missing glyphs (used
by default for Tahoma and Microsoft Sans Serif under Windows) doesn't
work if the font is loaded via a FontSubstitution entry.

The only place this is really likely to happen turns out to be using
MS Shell Dlg as a font name, which is generally discouraged for general
UI use (as far as I can tell, you're supposed to use a lookup function
which normally returns Tahoma or Microsoft Sans Serif directly) but
this happens to be the case for uTorrent 1.8 onwards.

-- 
Paul "TBBle" Hampson, Paul.Hampson at Pobox.com

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