splitArea显示bug

[Erimus-Koo]

设置xAxis.splitArea后，且有interval时，尾端余数格未填充。

见图：

注意最右侧露出的grid背景。

option = {
    grid:{
        show:true,
        backgroundColor:'yellow',
    },
    xAxis: {
        type: 'category',
        data: [1,2,3,4,5,6,7,8,],
        splitArea:{
            show:true,
            interval:2, //<<<
            areaStyle:{
                color:['#181818','#222']
            },
        }
    },
    yAxis: {
        type: 'value',
    },
    series: [
        {
            name:'data',
            type:'line',
            smooth:true,
            data: [0,0.2,0.1,0.4,0.2,0.3,0.1,0],
        },
    ]
};

[Erimus-Koo]

@pissang

[Ovilia]

@Erimus-Koo 已修复，下个版本上线