--version output change proposal

[Karl Berry]

rms and I have been batting around the --version output stuff.
Here's what we seem to be settling on:

 sort (GNU coreutils) 6.4
 Copyright (C) 2006 Free Software Foundation, Inc.
 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.

rms wanted to have some extra words in there.  He wrote:
    Remember, our goal is NOT merely to give experts information.
    We need to be looking for opportunities to spread the basic
    ideas of free software.   Never focus on the former in a way
    that ignores the latter.

So the new text above has the machine parsable license id (after
License:), but also a one-line expansion of its meaning.  And a few
words about what free software means.  And the shorter warranty line.

If any comments, let me know before we inscribe it into standards.texi ...

Thanks,
Karl