DOC & DOC-* wrongly ignored in emacs cvs /etc

[CHENG Gao]

etc/.cvsignore has 
DOC DOC-*

But without them, make bootstrap will fail.

Is it problem with  cvs tree setting or am I unlucky?
(In fact I can copy from existed emacs and bootstrapping succeeds.)

-- 
No God blessing me
No Dog barking at me
Gonna adopt a Dog
Name it God
Get blessed and barked at