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 Wed 14 May 2014 10:57:08 AM JST
gpg:                using DSA key 9A6D92628FFDC942
gpg: Can't check signature: No public key
--- SIGNATURE Wed May 14 10:57:12 2014
+++ 
@@ -1,6 +1,8 @@
 SHA1 a5c7caf8d419f9c53afb5077509576a2a12861bb .gitignore
 SHA1 012fe1ce01fb53ea10dfac7145ee7217b8b3ae85 LICENSE
-SHA1 eac9e5be10794f2cefd4a83c55328bb2188793c7 MANIFEST
+SHA1 c325f3a5897da4c3c2d02b4ff80e8aee43a949d7 MANIFEST
+SHA256 ca2495e75daa3a5800441284813cf363b48b7aa86cbc5adf40c9df1f3a129273 META.json
+SHA256 c389d4b39eb2e289152edf7cedaeb4effe9b46b57ec86e641b2b8f0af0bc626e META.yml
 SHA1 7bf6e519b2d19aa6ab27f46d2e385350aa9d4419 Makefile.PL
 SHA1 258baa397513b601ab8beacc75d49574173bdcc7 README
 SHA1 eec8f664674bedb1b4082df33129ef277dd8b1fd Stats.xs
==> MISMATCHED content between SIGNATURE and distribution files! <==