Fix sessions for Windows
Fix sessions for Windows

':' is invalid in a Windows path, and json needs output to support
write(str).

rschmidtz/httpie,HackerTool/httpie,jkbrzt/httpie,HackerTool/httpie,bright-sparks/httpie,GrimDerp/httpie,gnagel/httpie,normabuttz/httpie,bgarrels/httpie,marklap/httpie,marklap/httpie,rschmidtz/httpie,tylertebbs20/Practice-httpie,fontenele/httpie,rgordeev/httpie,avtoritet/httpie,rusheel/httpie,whitefoxx/httpie,alexeikabak/httpie,vietlq/httpie,zerin108/httpie,keita1314/httpie,danieldc/httpie,alexeikabak/httpie,alfcrisci/httpie,danieldc/httpie,fritaly/httpie,avtoritet/httpie,guiquanz/httpie,a-x-/httpie,Batterfii/httpie,jkbrzt/httpie,ardydedase/httpie,PKRoma/httpie,lk1ngaa7/httpie,alfcrisci/httpie,keita1314/httpie,meigrafd/httpie,sofianhw/httpie,jcrumb/httpie,lk1ngaa7/httpie,mblayman/httpie,insionng/httpie,guiquanz/httpie,rgordeev/httpie,insionng/httpie,kevinlondon/httpie,saisai/httpie,bitcoinfees/two1-httpie,bitcoinfees/two1-httpie,Batterfii/httpie,aredo/httpie,fritaly/httpie,alex-bretet/httpie,ardydedase/httpie,normabuttz/httpie,kaushik94/httpie,JPWKU/httpie,paran0ids0ul/httpie,jkbrzt/httpie,lingtalfi/httpie,PKRoma/httpie,konopski/httpie,bright-sparks/httpie,GrimDerp/httpie,rusheel/httpie,tylertebbs20/Practice-httpie,zerodark/httpie,aredo/httpie,JPWKU/httpie,alex-bretet/httpie,codingjoe/httpie,lingtalfi/httpie,paran0ids0ul/httpie,jcrumb/httpie,Bogon/httpie,jakubroztocil/httpie,Bogon/httpie,whitefoxx/httpie,MiteshShah/httpie,fontenele/httpie,vietlq/httpie,codingjoe/httpie,saisai/httpie,chaos33/httpie,hoatle/httpie,wandec/first,hoatle/httpie,zerin108/httpie,a-x-/httpie,jakubroztocil/httpie,MiteshShah/httpie,jakubroztocil/httpie,zerodark/httpie,sofianhw/httpie,kevinlondon/httpie,bgarrels/httpie,meigrafd/httpie,gnagel/httpie,konopski/httpie,mblayman/httpie