[Bug libfortran/43849] Add _gfortran_finalize function to close down the library

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849

--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> IMHO, no there isn't a real use case for exporting the cleanup() function.

Does it mean that this PR could be closed? FIXED or WONTFIX?