build: fix spurious SIGPIPE

[andreas-schwab]

No description provided.

[cyphar]

You need to add a Signed-off-by: line to your commit(s) which indicates that you attest the Developer Certificate of Origin a statement about your contributions that you must read before signing (don't worry, it's quite short and easy-to-read). You can add it to your commits with git commit --amend -s, and then doing a git push --force.

NOTE: This is a saved reply. Sorry if it reads as a cookie-cutter response, it was written so that newcomers understand what a "DCO" is and make the process for contributing a little less scary.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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