fix oreillymedia#217

Author: gimsieke

schema/svg/xlink.xsd

@@ -24,7 +24,7 @@ constructs, e.g.
 </xs:schema>]]></xs:documentation>
  </xs:annotation>
 
- <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/>
+ <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
 
  <xs:attribute name="type" type="xlink:typeType"/>