run-tests: stop allocating HGPORT3+HGPORT4 The only consumer was test-treemanifest.t, which has been fixed. In general, you should be able to use killdaemons.py to recycle ports instead of going over 3 ports (HGPORT, HGPORT1, HGPORT2). In the future, if you want to add a port, be sure to change portneeded in _getport.