http: use sizeof() instead of direct constant use
http: use sizeof() instead of direct constant use

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