miniscule: fix edition fmt (#5167)

* miniscule: fix edition fmt

* fix: rust analyzer might enable this and hence cause red squiggles

Reduce the visual overload.

* fix/spellcheck/quirk: allow 124_123 numbers

polkadot/node/gum/proc-macro/src/lib.rs

@@ -67,7 +67,10 @@ pub(crate) fn gum(item: proc_macro::TokenStream, level: Level) -> proc_macro::To
 
 	let res = expander::Expander::new("gum")
 		.add_comment("Generated overseer code by `gum::warn!(..)`".to_owned())
-		.dry(!cfg!(feature = "expand"))
+		// `dry=true` until rust-analyzer can selectively disable features so it's
+		// not all red squiggles. Originally: `!cfg!(feature = "expand")`
+		// ISSUE: <https://github.com/rust-analyzer/rust-analyzer/issues/11777>
+		.dry(true)
 		.verbose(false)
 		.fmt(expander::Edition::_2021)
 		.maybe_write_to_out_dir(impl_gum2(item, level))

polkadot/node/overseer/overseer-gen/proc-macro/src/lib.rs

@@ -102,7 +102,7 @@ pub(crate) fn impl_overseer_gen(
 		.add_comment("Generated overseer code by `#[overlord(..)]`".to_owned())
 		.dry(!cfg!(feature = "expand"))
 		.verbose(false)
-		.fmt(expander::Edition::_2018)
+		.fmt(expander::Edition::_2021)
 		.write_to_out_dir(additive)
 		.expect("Expander does not fail due to IO in OUT_DIR. qed");