loader: loader_lua can run command_more twice

When we quit pager, the return value 1 is returned and command_more()
interprets it as error.

when lua loader gets error from command, it will try to
interpret it once more, so we get the same file shown once more.

There is no reason why we should return error from command_more().

MFC after:	1 week

stand/common/commands.c

@@ -484,10 +484,7 @@ command_more(int argc, char *argv[])
 	}
 	pager_close();
 
-	if (res == 0)
-		return (CMD_OK);
-	else
-		return (CMD_ERROR);
+	return (CMD_OK);
 }
 
 static int