Update AB's duplicate email address

.mailmap

@@ -6,7 +6,8 @@
 #
 # For explanation on this file format: man git-shortlog
 
-Anand Babu (AB) Periasamy <ab@unlocksmith.org> <abperiasamy@users.noreply.github.com>
+Anand Babu (AB) Periasamy <ab@minio.io> Anand Babu (AB) Periasamy <abperiasamy@users.noreply.github.com>
+Anand Babu (AB) Periasamy <ab@minio.io> <ab@unlocksmith.org>
 Anis Elleuch <vadmeste@gmail.com>
 Frederick F. Kautz IV <fkautz@minio.io> <fkautz@alumni.cmu.edu>
 Harshavardhana <harsha@minio.io> <harsha@harshavardhana.net>

CONTRIBUTORS.md

@@ -1,7 +1,7 @@
 ## Contributors
 <!-- DO NOT EDIT - CONTRIBUTORS.md is autogenerated from git commit log by contributors.sh script. -->
 
-- Anand Babu (AB) Periasamy <ab@unlocksmith.org>
+- Anand Babu (AB) Periasamy <ab@minio.io>
 - Anis Elleuch <vadmeste@gmail.com>
 - Frederick F. Kautz IV <fkautz@minio.io>
 - Harshavardhana <harsha@minio.io>