[rfc] Cleanup restore.exp

[Andrew Cagney]

> ac> How about I change it to " caller$c prologue .*" with a corresponding 
> ac> tweak to restore.c?  That way there's no confusion.
> 
> That would be cool, if you want to do that.
> 
> But before you touch restore.c, someone has to add a copyright notice to
> it.  restore.c was written by Jim Blandy of Cygnus in 1998 so there's no
> doubt that FSF owns it.  It was modified in 1998, 1999, 2001, and 2003
> (plus it will be modified in 2004 by adding the notice).
> 
> For the record, I got this information from ChangeLog, the cvs
> repository, and my set of historical gdb releases.
> 
> When adding a copyright notice, one has to test the change, because
> some *.exp scripts depend on line numbers in their *.c files.
> It appears that restore.exp does not have this problem.
> 
> It's enough work that I do "add copyright notice" as a separate patch,
> especially because I like to separate legally significant changes
> from technically significant changes.
> 
> Would you like to add a copyright notice to restore.c, or would you like
> me to do it?

Feel free.

Andrew