gitdm: Add missing entries

A few new companies and individuals contributed to libvirt since
the last time the gitdm configuration was updated.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>

docs/gitdm/groups/opensource

@@ -10,3 +10,4 @@ linux.com
 openbsd.org
 salasaga.org
 samba.org
+sdf.org

docs/gitdm/groups/unaffiliated

@@ -9,6 +9,7 @@ googlemail.com
 hotmail.com
 mail.ru
 pobox.com
+protonmail.com
 riseup.net
 web.de
 yahoo.com
@@ -18,6 +19,7 @@ yahoo.com
 # addresses directly rather than just the domain, because we can't really
 # consider the domain itself one way or the other.
 
+=@eater.me
 adam@pandorasboxen.com
 agx@sigxcpu.org
 alexander.nusov@nfvexpress.com