fix infinite loop of death which can occur with Process.get_children(recursive=True)
fix infinite loop of death which can occur with Process.get_children(recursive=True)

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