Use 'operation' instead of 'operation-id' for optional argument
Use 'operation' instead of 'operation-id' for optional argument

 * This is cleaner and is easier to describe in the documentation

freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd