contrib/wix/doc.wxs

verify: rename "hasmanifest" variable for source code readability

Before this patch, there are two ambiguous variables: "havemf" and
"hasmanifest".

"havemf" means whether there are any "manifest" entries.

"hasmanifest" means whether there are any "changelog" entries
referring to "manifest" entry.

This patch renames from "hasmanifest" to "refersmf" to clear
difference from "havemf".

<?xml version="1.0" encoding="utf-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">

  <?include guids.wxi ?>
  <?include defines.wxi ?>

  <Fragment>
    <ComponentGroup Id="docFolder">
      <ComponentRef Id="doc.hg.1.html" />
      <ComponentRef Id="doc.hgignore.5.html" />
      <ComponentRef Id="doc.hgrc.5.html" />
      <ComponentRef Id="doc.style.css" />
    </ComponentGroup>
  </Fragment>

  <Fragment>
    <DirectoryRef Id="INSTALLDIR">
      <Directory Id="docdir" Name="doc" FileSource="$(var.SourceDir)">
        <Component Id="doc.hg.1.html" Guid="$(var.doc.hg.1.html.guid)" Win64='$(var.IsX64)'>
          <File Name="hg.1.html" KeyPath="yes">
            <Shortcut Id="hg1StartMenu" Directory="ProgramMenuDir"
                      Name="Mercurial Command Reference"
                      Icon="hgIcon.ico" IconIndex="0" Advertise="yes"
            />
          </File>
        </Component>
        <Component Id="doc.hgignore.5.html" Guid="$(var.doc.hgignore.5.html.guid)" Win64='$(var.IsX64)'>
          <File Name="hgignore.5.html" KeyPath="yes">
            <Shortcut Id="hgignore5StartMenu" Directory="ProgramMenuDir"
                      Name="Mercurial Ignore Files"
                      Icon="hgIcon.ico" IconIndex="0" Advertise="yes"
            />
          </File>
        </Component>
        <Component Id="doc.hgrc.5.html" Guid="$(var.doc.hgrc.5.html)" Win64='$(var.IsX64)'>
          <File Name="hgrc.5.html" KeyPath="yes">
            <Shortcut Id="hgrc5StartMenu" Directory="ProgramMenuDir"
                      Name="Mercurial Configuration Files"
                      Icon="hgIcon.ico" IconIndex="0" Advertise="yes"
            />
          </File>
        </Component>
        <Component Id="doc.style.css" Guid="$(var.doc.style.css)" Win64='$(var.IsX64)'>
          <File Name="style.css" KeyPath="yes" />
        </Component>
      </Directory>
    </DirectoryRef>
  </Fragment>

</Wix>