I tracked down an anoyance in my cifs client -it
will not let me delete open files - which I should fix.
The only cluprit I found was mv(1) and there seems to be no
reason for it do do this; so I "fixed" it.

I will not be surprised if this patch gets sorry'ed.

PS: tried to preserve the codeing conventions used in mv(1) but
they appear to be mixed.

-Steve