lualoader: Return status in cli_execute_unparsed properly

cli_execute was changed to return the status, cascade that to
cli_execute_unparsed.

This fixes a lot of false "Failed to execute" errors following r330620; no
failures actually occurred, but [module]_error would've then promptly
executed (and also "failed")

stand/lua/cli.lua

@@ -95,7 +95,7 @@ function cli_execute(...)
 end
 
 function cli_execute_unparsed(str)
-	cli_execute(loader.parse(str))
+	return cli_execute(loader.parse(str))
 end
 
 -- Module exports