regexp: improve Regexp.ReplaceAll documentation and tests related to Expand part
For #40329
Change-Id: Ie0cb337545ce39cd169129227c45f7d2eaebc898
GitHub-Last-Rev:
c017d4c7c1bc1f8cd39e6c70b60885cef1231dcd
GitHub-Pull-Request: golang/go#56507
Reviewed-on: https://go-review.googlesource.com/c/go/+/446836
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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