Errors

use_strict

B::Stats::Minus

use_warnings

B::Stats, B::Stats::Minus

valid_signature

gpg: Signature made Wed 26 Feb 2020 07:09:54 PM JST
gpg:                using RSA key 2895A881D34270FABFE8F747B4F63339E65D6414
gpg: Can't check signature: No public key