> 42
> 30
> 3
-> X/X
+> X
>
-> Tue, 2 Mar 1999 09:44:33 +0000 // Changed locale // Tue, 2 Mar 1999 09:44:33 +0000
+> this change-locale fails in earlier systems. Works on Fedora 29.
+> Tue, 2 Mar 1999 09:44:33 +0000 // Changed locale // dim., 10 févr 2019 20:05:49 +0000
>
> Subroutine foo called with args: arg1
> Failed: Perl subroutine "foo_undef" returned undef to force failure