fix lint after eslint upgrade
fix lint after eslint upgrade

Endika/vue,th0r/vue,galenyuan/vue,diermengdierme/vue,shupan123/vue-fixed-type,karevn/vue,seedalpha/vue,galenyuan/vue,lepture/vue,karevn/vue,Endika/vue,diermengdierme/vue,lepture/vue,galenyuan/vue,fergaldoyle/vue,lepture/vue,seedalpha/vue,seedalpha/vue,fergaldoyle/vue,th0r/vue,Endika/vue,shupan123/vue-fixed-type,karevn/vue,fergaldoyle/vue,diermengdierme/vue,shupan123/vue-fixed-type,th0r/vue