Note to self: extend the precommit scripts to run on Mac.

@burblebee: that change alone isn't enough to get the script to run on MacOS. I set up a MacOS presubmit on the beta branch, see here: https://github.com/cplusplus/draft/runs/2766096602

If you'd like to experiment further, feel free to just push more changes into that branch. When it all works, we can apply the full change to master.

I added the missing semicolon in awk. The other semicolons don't seem to be necessary.

That said, the bigger problem is that BSD-sed doesn't appear to allow nested commands, e.g. see https://unix.stackexchange.com/questions/13711/differences-between-sed-on-mac-osx-and-other-standard-sed. That breaks

For the time being, we can install gnu-sed on MacOS (brew install gnu-sed); that's at least good enough for the GitHub unit tests.

I'll close this for now. Please reopen if you have found a way to rewrite the sed command.

That said, the bigger problem is that BSD-sed doesn't appear to allow nested commands

@tkoeppe Yup, that's what I got stuck on. Let's just document in the scripts and on github that gnu-sed is required. Thanks for looking into this!