[Bug testsuite/80221] Contrib script to rewrite testcase from absolute to relative line numbers

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80221

--- Comment #18 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Thomas Schwinge from comment #9)
> You could further optimize the script to omit "." locations: if the "dg-*"
> directive actually is placed on the appropriate line already.

I did this in a separate cleanup action, which I implemented using find and
sed.

Commited in r247363 "Remove superfluous ' . ' in
dg-(error|warning|message|bogus)".