CVS 1.11 sanity.sh fails at multiroot-log-1 under HPUX 10.20

[Lenny Foner]

A completely normal ./configure; make; make check just failed:

    /bin/sh ./sanity.sh `pwd`/cvs
    This test should produce no other output than this line, and a final "OK".
    ./sanity.sh[22]: /usr/local/bin/expr: The parameter list is too long.
    ./sanity.sh[29]: /usr/local/bin/expr: The parameter list is too long.
    FAIL: multiroot-log-1
    make[1]: *** [check] Error 1
    make[1]: Leaving directory `/usr/local/src/cvs-1.11/src'
    make: *** [check] Error 2

This is 94% of the way through sanity.sh, and I assume is because my
expr or my shell is deficient.  I get "expr (GNU sh-utils) 1.16" from
expr --version, and my shell, while lacking any easy way to determine
its version, at least says this:

    > strings /bin/sh | grep -i version
    @(#) Version M-11/16/88f

(On both HPUX 10.20's I just looked at, /bin/posix/sh is just a
symlink to /bin/sh; under 9.x, it used to be that /bin/posix/sh
handled long arglists better.  Under 10.20, who knows.)

I'm willing to believe that CVS itself is working fine, but it'd be
nice to have sanity tests that don't stress everything else so hard
that I can't get through them.  Any suggestions?

Btw, sanity.sh ran for about 40 minutes on this 735/100 before it blew
up.  1.9's sanity ran about 10 minutes, and I haven't tried 1.10 on
this platform---but 1.11's is 4x as long as 1.9's, so that's just
about the right timing...