If -O output file and -N are both specified, it seems like there should be some
mode where
the tests for noclobber apply to the output file, not the filename that exists
on the remote machine.
So, if I run
# wget -N http://www.gnu.org/graphics/gnu-head-banner.png -O foo
and then
# wget -N
From: Mitch Silverstein
If -O output file and -N are both specified [...]
When -O foo is specified, it's not a suggestion for a file name to
be used later if needed. Instead, wget opens the output file (foo)
before it does anything else. Thus, it's always a newly created file,
and hence
