Add a new --command-lines, like -i but can add per-file options

[積丹尼 Dan Jacobson]

One can do
$ wget -O A B; wget -O C D
But there is no way to combine them:
$ wget -O A B -O C D # or
$ wget -i - <<EOF
-O A B
-O C D
EOF
to avoid more DNS etc. queries.

Wait!
On the INFO page we read

  ...big security risk.  To work around it, use ‘wget -i -’ and feed the URLs
 to Wget’s standard input, each on a separate line, terminated by ‘C-d’.

So maybe indeed one can do this!

OK but you need to document it in the -i discussions!

In fact the -i discussions never mention the format of the input file
regarding how many items / options can be on one text line.

Alas,
$ echo http://example.com/x -O A | wget -d -i -
--2019-12-14 08:20:42--  http://example.com/x%20-O%20A

So the -i discussions need to mention that any spaces will be considered
part of the filename.

And there should be an new
--command-lines
that would be like -i, but allow the user to use -O etc.

In it, spaces would separate options.

To use a real space in a filename, the user would use %20. Or escape it
with backslash or something.

(OK, one can do curl W -o X Y -o Z)