新增于: v8.5.0
将后续行的缩进增加 groupIndentation 长度的空格。
如果提供了一个或多个 label，则首先打印这些 label，没有额外的缩进。
Added in: v8.5.0
Increases indentation of subsequent lines by spaces for groupIndentation
length.
If one or more labels are provided, those are printed first without the
additional indentation.