Give demo user an email

.travis.yml

@@ -56,7 +56,7 @@ script:
   # and add an admin user "demo" with password "guest"
   - php doc/rpm-build/post_install.php --domain default
     --source_dir `pwd` --start_db '' --autostart_db '' --start_webserver '' --webserver_user ''
-    --admin_user demo --admin_passwd guest
+    --admin_user demo --admin_passwd guest --admin_email noreply@example.com
   # disable PostgreSQL install as it fails in Travis with Fatal error: Call to unimplemented native function pg_set_client_encoding
   # install egroupware using PostgreSQL as domain "pgsql", need some specific handling we can not create users via sql
   #- psql -U postgres -c 'create database egroupware';