When running TestHostname, the location of the hostname binary is hardcoded as /bin/hostname. However, on some systems the actual location is /usr/bin/hostname. Change this behaviour to perform a lookup for hostname in PATH, and skip the test when it cannot be found there. Fixes #52402 Change-Id: I5418bf77258f5ffb2a9f834b8c68d8a7b7a452d7 GitHub-Last-Rev: 750f36fcf9d4b26b75e91b895d6f7c6a275536ee GitHub-Pull-Request: golang/go#52403 Reviewed-on: https://go-review.googlesource.com/c/go/+/400794 Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Auto-Submit: Ian Lance Taylor <iant@google.com>
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