further to this, that recipe doesn't seem to cut it.

removing ? flagged files and re-fetching works, but its a bit
brute-force.

$ cd xwud/
$ cvs -q -z9 up -dPCA
? DESCR
? Makefile
? PLIST
? distinfo
cvs update: move away ./DESCR; it is in the way
C DESCR
cvs update: move away ./Makefile; it is in the way
C Makefile
cvs update: move away ./PLIST; it is in the way
C PLIST
cvs update: move away ./distinfo; it is in the way
C distinfo
$ rm *
rm: CVS: is a directory
$ cvs -q -z9 up -dPCA
U DESCR
U Makefile
U PLIST
U distinfo
$ cvs -q -z9 up -dPCA
$