Errors

use_strict

B::Stats::Minus

use_warnings

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

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sat 09 Aug 2014 07:26:23 AM JST
gpg:                using DSA key 9A6D92628FFDC942
gpg: Can't check signature: No public key