Added myself to mailmap
@@ -10,3 +10,4 @@ Artyom Lukianov <alukiano@redhat.com>
Petr Kotas <pkotas@redhat.com> <petr.kotas@gmail.com>
Karim Boumedhel <kboumedh@redhat.com> <karimboumedhel@gmail.com>
Yuval Lifshitz <ylifshit@redhat.com> <yuvalif@yahoo.com>
+Marc Sluiter <msluiter@redhat.com> <marc@slintes.net>
