shared: take wlock for writting the 'shared' file
I do not see a reason why this should not be covered by the wlock.
<?xml version="1.0" encoding="utf-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<?include guids.wxi ?>
<?include defines.wxi ?>
<?define hg_po_langs =
da;de;el;fr;it;ja;pt_BR;ro;ru;sv;zh_CN;zh_TW
?>
<Fragment>
<DirectoryRef Id="INSTALLDIR">
<Directory Id="i18ndir" Name="i18n" FileSource="$(var.SourceDir)">
<Component Id="i18nFolder" Guid="$(var.i18nFolder.guid)" Win64='$(var.IsX64)'>
<File Name="hggettext" KeyPath="yes" />
<?foreach LANG in $(var.hg_po_langs) ?>
<File Id="hg.$(var.LANG).po"
Name="$(var.LANG).po"
/>
<?endforeach?>
</Component>
</Directory>
</DirectoryRef>
</Fragment>
</Wix>