[Issue 20571] spawnProcess does not find .bat files

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20571

--- Comment #2 from torhu at yahoo.com ---
Nevermind, I see what you mean now. spawnProcess will run batch files, but it
won't find them unless the .bat extension is included.

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