cvs cache corrupt again

[Angela Marie Thomas]

> cvs [server aborted]: head attribute does not match file for `/cvs/gcc/gcc/gc
c/ChangeLog,v'

I was told once that this happened when non-fileattr-aware versions of
cvs were used to make commits.  If that's the case, this will happen a
lot (which it seems to).  I can't think of any reason why the client would
have to know about it, so maybe it's a bug?

Chris, when you were looking at the local hacks, did you notice anything
that would indicate the client needed support for fileattr as well?

--Angela