bugfix (conflicting function interfaces)

src/denm.c

@@ -450,7 +450,7 @@ enum EVENT_CHECK_R event_manage(void *denm, uint64_t* id, uint8_t* ssp, uint32_t
     return rv;
 }
 
-int den_init() {
+int den_init(void *arg) {
     return 0;
 }