man xditview doesn’t show me that i should expect a directory listing
resulting from
xditview '.'
it does tell me what to expect from both of these:
xditview -
xditview |
that is to say: i’m not sure we should expect the results of these two
commands to be the same (directory listing):
xditview '.'
xedit '.'
but, i’m guessing and have neither googled nor searched bugzilla to
see if your discovery is either in the bug hopper or known by others
to be a problem…