Constant const_panic::fmt::INDENTATION_STEP

pub const INDENTATION_STEP: u8 = 4;

Available on crate feature non_basic only.

How much indentation (in spaces) is added with FmtArg::indent, and removed with FmtArg::unindent.

The FmtArg.indentation field is used by fmt::Delimiter and by fmt::Separator, when the is_alternate flag is enabled.