Update .mailmap

.mailmap

@@ -69,7 +69,8 @@ Walter Nasich <wnasich@gmail.com>
 mstra001 <ms@creemedia.com>
 Aymeric Derbois <aymeric@derbois.com>
 Daniel <wrightdaniel86@gmail.com>
-James Michael DuPont <JamesMikeDuPont@gmail.com>
+James Michael DuPont <jamesmikedupont@gmail.com>
+James Michael DuPont <jamesmikedupont@gmail.com> <JamesMikeDuPont@gmail.com>
 Jan Dorsman <oldskool@fluxbb.org>
 Pierre Martin <contact@pierre-martin.fr>
 Jeremy Harris <jeremy@42pixels.com>