find: fix flags in pipe-separated substitutions

[dgw]

Description

Unescaped | was messing up capturing the flags at the end of the line.

Checklist

• I have read CONTRIBUTING.md
• I can and do license this contribution under the EFLv2
• No issues are reported by make qa (runs make quality and make test)
• I have tested the functionality of the things this change touches

Notes

Introduced in #1993, first released in v7.1.0. Should be backported if we make a 7.1.10 release (but I'm still not planning one).

[dgw]

I guess the first thing for me to look at tomorrow will be "what's wrong with you, Coveralls?"

Submitting coverage to coveralls.io...
Could not submit coverage: 422 Client Error: Unprocessable Entity for url: https://coveralls.io/api/v1/jobs
resubmitting with id None
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/coveralls/api.py", line 290, in submit_report
    response.raise_for_status()
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/requests/models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 422 Client Error: Unprocessable Entity for url: https://coveralls.io/api/v1/jobs

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/coveralls/cli.py", line 95, in main
    result = coverallz.wear()
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/coveralls/api.py", line 257, in wear
    return self.submit_report(json_string)
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/coveralls/api.py", line 293, in submit_report
    raise CoverallsException(
coveralls.exception.CoverallsException: Could not submit coverage: 422 Client Error: Unprocessable Entity for url: https://coveralls.io/api/v1/jobs
Error: Process completed with exit code 1.

[dgw]

Status update: Located an issue where several people are discussing the Coveralls error that the CI jobs are running into on this pull request. See lemurheavy/coveralls-public#1708

[dgw]

Follow-up in a different thread says a fix has been applied for the Coveralls error: lemurheavy/coveralls-public#1710 (comment)

Rerunning the CI checks a few moments ago succeeded (except for having to retry the finalize step again due to a pip error).

[Exirel]

If you say it works, it works.