Now '\0' in 8-bit mode data handled correctly.
Now '\0' in 8-bit mode data handled correctly.

UniQP/libqrencode,jaybinhe/libqrencode,sballe73/libqrencode,mazoRen/libqrencode,tklauser/libqrencode,sballe73/libqrencode,alexrao/libqrencode,tklauser/libqrencode,UniQP/libqrencode,fukuchi/libqrencode,jaybinhe/libqrencode,sballe73/libqrencode,fukuchi/libqrencode,mazoRen/libqrencode,alexrao/libqrencode,fukuchi/libqrencode,fuhangbo/libqrencode,jaybinhe/libqrencode,tklauser/libqrencode,sballe73/libqrencode,UniQP/libqrencode,alexrao/libqrencode,alexrao/libqrencode,fuhangbo/libqrencode,mazoRen/libqrencode,mazoRen/libqrencode,UniQP/libqrencode,fuhangbo/libqrencode,jaybinhe/libqrencode,tklauser/libqrencode