Fix new rustc `#[macro_export]` warning in doctests#3031

valentinewallace merged 1 commit intolightningdevkit:mainlightningdevkit/rust-lightning:mainfrom

TheBlueMatt:2024-04-new-rustc-warningTheBlueMatt/rust-lightning:2024-04-new-rustc-warningCopy head branch name to clipboard