hgweb: clearly outline <tr> block in gitweb and spartan styles
It's easy to miss the closing </tr> tag when it's not on its own line. Some
neighboring blocks also already use this clearer style.
(In 03f692eee31d I didn't even think grepping for this, but this patch should
now cover every occurrence).
<Include>
<?if $(var.Platform) = "x64" ?>
<?define IsX64 = yes ?>
<?else?>
<?define IsX64 = no ?>
<?endif?>
</Include>