organize some code style
organize some code style

ChangsungKim/TestRepository01,Limseunghwan/oss,ahb0327/yobi,doortts/forked-for-history,brainagenet/yobi,ihoneymon/yobi,yona-projects/yona,ihoneymon/yobi,Limseunghwan/oss,doortts/fork-yobi,oolso/yobi,yona-projects/yona,doortts/forked-for-history,bloodybear/yona,oolso/yobi,Limseunghwan/oss,yona-projects/yona,brainagenet/yobi,yona-projects/yona,violetag/demo,doortts/forked-for-history,ChangsungKim/TestRepository01,doortts/fork-yobi,ahb0327/yobi,violetag/demo,oolso/yobi,naver/yobi,ihoneymon/yobi,ahb0327/yobi,naver/yobi,bloodybear/yona,brainagenet/yobi,doortts/fork-yobi,bloodybear/yona,bloodybear/yona,naver/yobi,doortts/fork-yobi