[PATCH 0/1] MR5304: shell32: Try appending .exe when looking up an App Paths key.

[Zebediah Figura (＠zfigura)]

The standalone test attached to 51957 proves this change correct. Trying to
integrate a test into Wine's test suite is not particularly helpful since
ShellExecute() is asynchronous. We cannot test FindExecutable() either, since
that's not actually supposed to check the App Paths key (Wine is currently
incorrect in this respect).