Suggest removing an unnecessary trailing comma before the closing
parenthesis in single-line format-like macro invocations (e.g.
println!, format!, write!). The lint currently only runs on
format-like macros because it relies on format-argument parsing;
arbitrary user macros are not supported to avoid incorrect
suggestions.
- Lint is in the `style` group (allow-by-default)
- Single-line only: multi-line macro invocations are not linted
- Machine-applicable fix: removes the trailing comma
Yuri Astrakhan