update based on comments

.mailmap

@@ -322,7 +322,8 @@ Matthias Bastian <dev@matthias-bastian.de> <piepmatz@users.noreply.github.com>
 Maurice Hayward <mauricehayward1@gmail.com>
 Maya Lekova <apokalyptra@gmail.com> <mslekova@chromium.org>
 Michael Bernstein <michaelrbernstein@gmail.com>
-Michael Dawson <midawson@redhat.com> <mdawson@devrus.com> <michael_dawson@ca.ibm.com>
+Michael Dawson <midawson@redhat.com> <mdawson@devrus.com>
+Michael Dawson <midawson@redhat.com> <michael_dawson@ca.ibm.com>
 Michael Starzinger <mstarzinger@chromium.org>
 Michaël Zasso <targos@protonmail.com> <mic.besace@gmail.com>
 Michael-Rainabba Richardson <rainabba@gmail.com>