bug#2805: 23.0.90; why is minibuffer-default-add-completions a command?

"Drew Adams" <[email protected]>
Newsgroups gmane.emacs.bugs,gmane.emacs.pretest.bugs
Message-ID <[email protected]> 
emacs -Q
 
Should `minibuffer-default-add-completions' really be an
interactive function? I don't see where that feature is
used anywhere.
 

In GNU Emacs 23.0.90.1 (i386-mingw-nt5.1.2600)
 of 2009-02-01 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'
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