.mailmap: fix email for Phil Hord

My canonical and old emails were reversed, somehow. Also add
an entry for a new email that may sneak in.

Signed-off-by: Phil Hord <phil.hord@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: phord

.mailmap

@@ -224,7 +224,8 @@ Peter Krefting <peter@softwolves.pp.se> <peter@softwolves.pp.se>
 Peter Krefting <peter@softwolves.pp.se> <peter@svarten.intern.softwolves.pp.se>
 Petr Baudis <pasky@ucw.cz> <pasky@suse.cz>
 Petr Baudis <pasky@ucw.cz> <xpasky@machine>
-Phil Hord <hordp@cisco.com> <phil.hord@gmail.com>
+Phil Hord <phil.hord@gmail.com> <hordp@cisco.com>
+Phil Hord <phil.hord@gmail.com> <phord@purestorage.com>
 Philip Jägenstedt <philip@foolip.org> <philip.jagenstedt@gmail.com>
 Philip Oakley <philipoakley@iee.email> <philipoakley@iee.org> # secondary <philipoakley@dunelm.org.uk>
 Philipp A. Hartmann <pah@qo.cx> <ph@sorgh.de>