[PATCH] update-netbsd.sh: fix script name, update year range in copyright.

[Tom Tromey]

>> Thank you, this looks good to me.  Could use the obvious rule for this
>> one.  If you need me to check it in for you, let me know and I will.

Frederic> Yes, it would be nice if you could get it in, as I don't have commit
Frederic> access.

I checked it in.  I made up a short commit message.
I wish we were at the state where "git send-email" worked ok.

Anyway, thank you.  If you plan to submit more gdb patches, you will
probably want to start the copyright assignment process.

thanks,
Tom