Make style of listings 9-7 and 9-8 consistent with 9-6#3217

Merged

chriskrycho merged 1 commit intorust-lang:mainfrom frankplow:error-handling-uses

Apr 18, 2024

+2-4

Commits on Jun 13, 2022

make style of listings 9-7 and 9-8 consistent with 9-6
frankplow
committed