h2olog: always call setuid() and setgid() on privdrop
h2olog: always call setuid() and setgid() on privdrop

devnexen/h2o,h2o/h2o,cwyang/h2o,yannick/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,yannick/h2o,yannick/h2o,h2o/h2o,h2o/h2o,cwyang/h2o,devnexen/h2o,cwyang/h2o,devnexen/h2o,cwyang/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,h2o/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,cwyang/h2o,devnexen/h2o,devnexen/h2o,devnexen/h2o,cwyang/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,yannick/h2o