misc/ipv4_proto.h: fix checksum (need to keep adding carry back)
misc/ipv4_proto.h: fix checksum (need to keep adding carry back)



Git-Host/badvpn,tempbottle/badvpn,binondord/badvpn,linfengfeiye/badvpn,PowerOlive/badvpn,binondord/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,PowerOlive/badvpn,Git-Host/badvpn,chrisballinger/badvpn,binondord/badvpn,chrisballinger/badvpn,LazyZhu/badvpn,LazyZhu/badvpn,PowerOlive/badvpn,tempbottle/badvpn,Git-Host/badvpn,PowerOlive/badvpn,Git-Host/badvpn,LazyZhu/badvpn,binondord/badvpn,tempbottle/badvpn,linfengfeiye/badvpn,chrisballinger/badvpn,LazyZhu/badvpn,linfengfeiye/badvpn,tempbottle/badvpn,chrisballinger/badvpn,tempbottle/badvpn,binondord/badvpn,PowerOlive/badvpn,LazyZhu/badvpn,linfengfeiye/badvpn