Update private-libwebsockets.h
Update private-libwebsockets.h

fixes windows http file serve - macro compatible_file_read() incorrectly used 'amount' instead of '_amount'
peeracle/libwebsockets,sartura/libwebsockets,sanyaade-teachings/libwebsockets,pombredanne/libwebsockets,pankona/libwebsockets,gameclosure/libwebsockets,mushroomgithub/libwebsockets,PureSwift/libwebsockets,pombredanne/libwebsockets,sanyaade-teachings/libwebsockets,RobertoMalatesta/libwebsockets,abligh/libwebsockets,PureSwift/libwebsockets,JoakimSoderberg/libwebsockets,DaYeSquad/libwebsockets,canopy-project/libwebsockets-canopy,gameclosure/libwebsockets,maws/libwebsockets,JoakimSoderberg/libwebsockets,dumganhar/libwebsockets,tn0502/libwebsockets,abligh/libwebsockets,ralight/libwebsockets,SoapyMan/libwebsockets,canopy-project/libwebsockets-canopy,sartura/libwebsockets,lukasz-skalski/libwebsockets,SoapyMan/libwebsockets,giovanni-liboni/libwebsockets,maws/libwebsockets,DaYeSquad/libwebsockets,JoakimSoderberg/libwebsockets,ralight/libwebsockets,peeracle/libwebsockets,cambridgehackers/libwebsockets,DaYeSquad/libwebsockets,abligh/libwebsockets,turbulenz/libwebsockets,dumganhar/libwebsockets,RobertoMalatesta/libwebsockets,wenqiwooo/syslog-libwebsockets,giovanni-liboni/libwebsockets,ralight/libwebsockets,giovanni-liboni/libwebsockets,tn0502/libwebsockets,Chilledheart/libwebsockets,PureSwift/libwebsockets,pankona/libwebsockets,ralight/libwebsockets,IOPOINT/libwebsockets,lukasz-skalski/libwebsockets,RobertoMalatesta/libwebsockets,PureSwift/libwebsockets,jmillan/libwebsockets,sartura/libwebsockets,pankona/libwebsockets,tn0502/libwebsockets,sanyaade-teachings/libwebsockets,jmillan/libwebsockets,cambridgehackers/libwebsockets,wenqiwooo/syslog-libwebsockets,peeracle/libwebsockets,jmillan/libwebsockets,dumganhar/libwebsockets,wenqiwooo/syslog-libwebsockets,sartura/libwebsockets,gameclosure/libwebsockets,sartura/libwebsockets,SoapyMan/libwebsockets,peeracle/libwebsockets,GroundControl-Solutions/libwebsockets,maws/libwebsockets,sartura/libwebsockets,Chilledheart/libwebsockets,turbulenz/libwebsockets,dumganhar/libwebsockets,cambridgehackers/libwebsockets,DaYeSquad/libwebsockets,pombredanne/libwebsockets,pankona/libwebsockets,IOPOINT/libwebsockets,ralight/libwebsockets,DaYeSquad/libwebsockets,GroundControl-Solutions/libwebsockets,antmicro/libwebsockets,abligh/libwebsockets,lukasz-skalski/libwebsockets,dumganhar/libwebsockets,peeracle/libwebsockets,turbulenz/libwebsockets,RobertoMalatesta/libwebsockets,PureSwift/libwebsockets,mushroomgithub/libwebsockets,cambridgehackers/libwebsockets,mushroomgithub/libwebsockets,sanyaade-teachings/libwebsockets,SoapyMan/libwebsockets,Chilledheart/libwebsockets,mushroomgithub/libwebsockets,GroundControl-Solutions/libwebsockets,antmicro/libwebsockets,lukasz-skalski/libwebsockets,pombredanne/libwebsockets,JoakimSoderberg/libwebsockets,gameclosure/libwebsockets,tn0502/libwebsockets,maws/libwebsockets,antmicro/libwebsockets,wenqiwooo/syslog-libwebsockets,antmicro/libwebsockets,GroundControl-Solutions/libwebsockets,canopy-project/libwebsockets-canopy,giovanni-liboni/libwebsockets,jmillan/libwebsockets,sartura/libwebsockets,IOPOINT/libwebsockets,GroundControl-Solutions/libwebsockets,SoapyMan/libwebsockets,Chilledheart/libwebsockets