[PATCH] hhctrl.ocx: expand environment vars in file name.

[Carlo Bramini]

HHCTRL implementation for WINE does not seem to support command lines including environment strings. Attached patch fixes one of the two issues described in bug#47379.

Sincerely. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47379
Signed-off-by: Carlo Bramini <carlo_bramini at users.sourceforge.net>
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