get_maintainer.pl produces non-deterministic results

[Dmitry Vyukov]

Hi Joe,

scripts/get_maintainer.pl fs/proc/task_mmu.c
non-deterministically gives me from 13 to 16 results, different number
every time (on upstream 6794862a). Perl v5.28.1. Michael confirmed
this with v5.28.2.
Vergard suggested to check PERL_HASH_SEED=0. Indeed it fixes
non-determinism. But I guess it's not the right solution, there should
be some logical problem.
My perl-fo is weak, I appreciate if somebody with proper perl-fo takes a look.

Thanks