Change to use short flag for 2.4
Change to use short flag for 2.4

Zephor5/pika,Tarsbot/pika,zixiliuyue/pika,hugoxia/pika,reddec/pika,pika/pika,benjamin9999/pika,vrtsystems/pika,renshawbay/pika-python3,vitaly-krugl/pika,knowsis/pika,fkarb/pika-python3,skftn/pika,shinji-s/pika,jstnlef/pika