add grid:-1 comment from dbaron

Author: annevk

css3-mediaqueries/disposition.html

@@ -648,7 +648,14 @@ <h1>Disposition of comments for Media Queries CR</h1>
 
 <td class=proposal>Zero is clarified to mean 0px, 0, etc. <a href="http://lists.w3.org/Archives/Public/www-style/2008Sep/0002.html">Min/max prefixed media features without values cannot be used</a>.
 
-
+<tr><th colspan=3 class=source><a href="http://www.w3.org/mid/20080619203334.GA30094@pickering.dbaron.org">Comment</a> from David Baron 19 Jun 2008
+<tr><td>36<td>
+<pre>After reading http://dev.w3.org/csswg/css3-mediaqueries/#grid it's
+not clear to me whether the queries "(grid: -1)" or "(grid: 2)"
+should be parse errors or should always be false.  It should be
+clear.</pre>
+
+<td class=proposal><a href="http://www.w3.org/mid/op.ughpofcf64w2qv@annevk-t60.oslo.opera.com">Clarified</a> they are indeed parse errors.
 
 
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