[Bug sanitizer/56682] -fsanitize documentation

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56682

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
I really believe there's no need for any extra options on top of
-sanitize={address,thread} right now.

The only recommendation would be about the -g option in order to have nice
backtraces and variable locations.