Convert 'variable_param' from a CDATA attribute to a NMTOKENS attribute.
The main difference is that white-space is used to separate the names
instead of comas.
diff --git a/src/mesa/glapi/gl_XML.py b/src/mesa/glapi/gl_XML.py
index 8b7b400..bb6ec2b 100644
--- a/src/mesa/glapi/gl_XML.py
+++ b/src/mesa/glapi/gl_XML.py
@@ -171,7 +171,7 @@
 
 		temp = attrs.get('variable_param', None)
 		if temp:
-			self.count_parameter_list = temp.replace( ' ', '' ).split( ',' )
+			self.count_parameter_list = temp.split( ' ' )
 		else:
 			self.count_parameter_list = []