problem with chpass after recent libutil change

[Claude Buisson]

Hi,

I have some 8-STABLE and 9-STABLE systems which have been upgraded from sources
csuped on June 3, and I found that I could no more change the shell for toor:

#chpass -s /bin/csh toor
chpass: entry inconsistent
chpass: pw_copy: Invalid argument

and seemingly ONLY for toor.

reverting lib/lib/libutil/pw_util.c from r236451 (on 9.X) or r236452 (on 8.X)
to the previous version seems to be workaround.

Claude Buisson