bug#6605: +N lines broken with /usr/bin/tail (GNU coreutils) 7.4

[Forest Oakwater]

Using this data file:
address@hidden:~/backgrounds/frazetta$ cat data.txt
line 1
line 2
line 3
line 4

and this command:
address@hidden:~/backgrounds/frazetta$ /usr/bin/tail +2 data.txt
/usr/bin/tail: cannot open `+2' for reading: No such file or directory
==> data.txt <==
line 1
line 2
line 3
line 4

Output was incorrect.  The manpage and builtin help text both state:

address@hidden:~/backgrounds/frazetta$ /usr/bin/tail --help
...
  -n, --lines=N            output the last N lines, instead of the last 10;
                           or use +N to output lines starting with the Nth
...

According to the documentation (and my previous experience shell scripting) It 
should have printed the tail of data.txt starting with the 2nd line, like this:
line 2
line 3
line 4

Looks like it just needs a little code near the getopt() call (or however the 
command line is parsed) to recognize "+" as an option indicator.

This is useful for example to implement a stack:
function pop
{
    FILENAME=`head -1 data.file`
    tail +2 data.file > data.file.tmp
    mv data.file.tmp data.file
}

function push
{
    echo "$FILENAME" > data.file.line1
    cat data.file.line1 data.file > data.file.tmp
    mv data.file.tmp data.file
}

Thanks for your attention.