GlyphRef no longer has an xlink:href attribute => remove sentence.
--- a/master/text.html Thu Jun 19 12:45:07 2014 +0200
+++ b/master/text.html Thu Jun 19 16:21:54 2014 +0200
@@ -6744,9 +6744,7 @@
insufficient attributes and properties have been specified to
identify a glyph, then the <a>'glyphRef element'</a> is processed
in the same manner as when a glyph reference is fully specified,
- but the given glyph is not available. If the <a>'xlink:href'</a>
- attribute is specified, it takes precedence, and the other glyph
- identification attributes and properties are ignored.
+ but the given glyph is not available.
</p>
</edit:with>