Failing test in 4.0.0-rc2

[Rik]

Steph and Tatsuro,

The failing test is

***** testif HAVE_GETPWUID
 x = getpwuid (getuid ());
 assert (x.dir, tilde_expand ("~"));
 assert (x.dir, tilde_expand (sprintf ("~%s", x.name)));
 assert ("foobar", tilde_expand ("foobar"));
!!!!! test failed
ASSERT errors for:  assert (x.dir,tilde_expand ("~"))

  Location  |  Observed  |  Expected  |  Reason
     []         /root     /home/steph    Strings don't match

This appears to be because 'make check' is being run as root rather than as
an ordinary user.  Even so, I would expect Octave to expand '~' correctly.

--Rik