[Bug fortran/63640] move_alloc memory leak

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63640

--- Comment #4 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
(In reply to Dominique d'Humieres from comment #3)
> Is this PR INVALID?

seems more like an enhancement request to free allocatables at the end of main.
I guess this is not mandated by the standard, but I'm actually not sure. Maybe
wontfix ?