Code cleanup.
Code cleanup.

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