corex: rpc corex.list_sockets and corex.list_aliases return array

- type of return value set to RET_ARRAY

modules/corex/corex_rpc.c

@@ -174,9 +174,9 @@ static void corex_rpc_shm_summary(rpc_t* rpc, void* ctx)
 
 rpc_export_t corex_rpc_cmds[] = {
 	{"corex.list_sockets", corex_rpc_list_sockets,
-		corex_rpc_list_sockets_doc, 0},
+		corex_rpc_list_sockets_doc, RET_ARRAY},
 	{"corex.list_aliases", corex_rpc_list_aliases,
-		corex_rpc_list_aliases_doc, 0},
+		corex_rpc_list_aliases_doc, RET_ARRAY},
 	{"corex.shm_status", corex_rpc_shm_status,
 		corex_rpc_shm_status_doc, 0},
 	{"corex.shm_summary", corex_rpc_shm_summary,