small bug in who(1) of SVR3

[Guy Harris]

>(Why does Berzerkeley ls have to act the way it does? Yuk. Having to say ls
>if the destination is a terminal, but ls -C if I want to pipe into, say,
>is nonintuitive at best.)

And since this is "comp.bugs.sys5", I note that S5R4's "ls" acts the way
the BSD one does; having people add aliases/shell functions to force
"-C" on, or wrapping a script around it with a different name to force
"-C" on, or having it look at "argv[0]" and force "-C" on if invoked
with the right name, might have been better.  And when I say "force", I
mean *FORCE*.  There are times when I want a multi-column listing when
"ls" is *not* going directly to the terminal, e.g. when piping it to a
pager program.