GetTransformFeedbackVarying: GlslTypeToken > AttributeType

GetTransformFeedbackVarying() was using incorrect GlslTypeToken
enum group for type parameter. The correct enum group is
AttributeType.
diff --git a/xml/gl.xml b/xml/gl.xml
index a1a1c62..de7bfba 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -20184,7 +20184,7 @@
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>size</name></param>
-            <param group="GlslTypeToken" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
+            <param group="AttributeType" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
             <param len="bufSize"><ptype>GLchar</ptype> *<name>name</name></param>
             <glx type="single" opcode="213"/>
         </command>
@@ -20195,7 +20195,7 @@
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>size</name></param>
-            <param group="GlslTypeToken" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
+            <param group="AttributeType" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
             <param len="bufSize"><ptype>GLchar</ptype> *<name>name</name></param>
             <alias name="glGetTransformFeedbackVarying"/>
         </command>