Fix compiler warning
Fix compiler warning

frrp/bitshares,bitshares/bitshares,FollowMyVote/bitshares,bitsuperlab/cpp-play,camponez/bitshares,bitshares/devshares,drltc/keyid,bitsuperlab/cpp-play,dacsunlimited/dac_play,RemitaBit/Remitabit,bitshares/bitshares,bitsuperlab/cpp-play,jakeporter/Bitshares,denkhaus/bitsharesx,bitshares/bitshares,jakeporter/Bitshares,dacsunlimited/dac_play,FollowMyVote/bitshares,drltc/keyid,bitshares/bitshares-0.x,FollowMyVote/bitshares,RemitaBit/Remitabit,jakeporter/Bitshares,FollowMyVote/bitshares,bitsuperlab/cpp-play,camponez/bitshares,Ziftr/bitshares,camponez/bitshares,FollowMyVote/bitshares,Ziftr/bitshares,denkhaus/bitsharesx,bitsuperlab/cpp-play,jakeporter/Bitshares,drltc/keyid,bitshares/bitshares-0.x,RemitaBit/Remitabit,bitshares/bitshares-0.x,frrp/bitshares,denkhaus/bitsharesx,bitshares/bitshares-0.x,bitshares/devshares,camponez/bitshares,camponez/bitshares,RemitaBit/Remitabit,dacsunlimited/dac_play,frrp/bitshares,frrp/bitshares,FollowMyVote/bitshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,dacsunlimited/dac_play,bitshares/bitshares-0.x,bitsuperlab/cpp-play,jakeporter/Bitshares,denkhaus/bitsharesx,jakeporter/Bitshares,frrp/bitshares,bitshares/bitshares,Ziftr/bitshares,Ziftr/bitshares,camponez/bitshares,bitshares/bitshares,drltc/keyid,RemitaBit/Remitabit,bitshares/bitshares,bitshares/devshares,dacsunlimited/dac_play,bitshares/devshares,frrp/bitshares,RemitaBit/Remitabit,bitshares/devshares,bitshares/devshares