Dangling "clustering" reference in comps-f21.xml.in

[Jerry James]

There is a reference to a "clustering" group inside the "servers"
category in comps-f21.xml.in, but no definition of "clustering"
anywhere that I can see.  Also:

[comps]$ make validate
...
comps-f21.xml:46: element packagereq: Relax-NG validity error :
Element packagereq failed to validate attributes
comps-f21.xml:46: element packagereq: Relax-NG validity error :
Element packagelist has extra content: packagereq
comps-f21.xml:118: element packagereq: Relax-NG validity error :
Element packagereq failed to validate attributes
comps-f21.xml:118: element packagereq: Relax-NG validity error :
Element packagelist has extra content: packagereq
comps-f21.xml:73: element group: Relax-NG validity error : Invalid
sequence in interleave
comps-f21.xml:73: element group: Relax-NG validity error : Element
group failed to validate content
comps-f21.xml:73: element group: Relax-NG validity error : Expecting
element environment, got group
comps-f21.xml:73: element group: Relax-NG validity error : Element
comps has extra content: group
comps-f21.xml fails to validate
...

Is that output expected?  I see similar output from comps-el4.xml,
comps-el5.xml, comps-f18.xml, comps-f19.xml, and comps-f20.xml as
well.

Regards,
-- 
Jerry James
http://www.jamezone.org/