Apply multi-arch hints.

+ syslog-ng-mod-extra: Add Multi-Arch: foreign.

Changes-By: apply-multiarch-hints

Author: debian-janitor

debian/control

@@ -543,6 +543,7 @@ Depends: syslog-ng-scl, ${misc:Depends}
 Architecture: all
 Priority: optional
 Section: oldlibs
+Multi-Arch: foreign
 Description: transitional package
  This is a transitional package. It can safely be removed.