wix: avoid an abort with 'hg help -k foo'...
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.