Fix error return value in addMany method
Fix error return value in addMany method

75team/thinkjs,maxzhang/thinkjs,maxzhang/thinkjs,maxzhang/thinkjs,akira-cn/thinkjs,akira-cn/thinkjs,Qihoo360/thinkjs,75team/thinkjs,akira-cn/thinkjs,snadn/thinkjs,thinkjs/thinkjs,75team/thinkjs