wix: avoid an abort with 'hg help -k foo' Previously: $ /c/Program\ Files/Mercurial/hg help -k merge-tools abort: No such file or directory: c:\Program Files\Mercurial\help\scripting.txt The Inno installer seems OK, but the TortoiseHg required the same fix. That got queued with an additional change of 'helpFolder.guid' in guids.wxi (probably by Steve). I'm not sure if that is necessary here too.