impl<'a, 'b> Context<'a, 'b> {
fn resolve_name_inplace(&self, p: &mut parse::Piece) {
// NOTE: the `unwrap_or` branch is needed in case of invalid format
- // arguments, e.g. `format_args!("{foo}")`.
+ // arguments, e.g., `format_args!("{foo}")`.
let lookup = |s| *self.names.get(s).unwrap_or(&0);
match *p {