fix open_files() on windows when process PID > 64K
fix open_files() on windows when process PID > 64K

0-wiz-0/psutil,msarahan/psutil,msarahan/psutil,msarahan/psutil,jorik041/psutil,packages/psutil,giampaolo/psutil,cloudbase/psutil,packages/psutil,qbit/psutil,giampaolo/psutil,jorik041/psutil,mrjefftang/psutil,mrjefftang/psutil,jamesblunt/psutil,0-wiz-0/psutil,Q-Leap-Networks/psutil,cloudbase/psutil,mrjefftang/psutil,jamesblunt/psutil,Q-Leap-Networks/psutil,cloudbase/psutil,jamesblunt/psutil,jorik041/psutil,qbit/psutil,packages/psutil,qbit/psutil