Yet another try to fix
One again changed the string and file referenced to handle single quotes properly inside pcre greps.
@@ -68,7 +68,7 @@ xfailif_broken_deep_listdir = pytest.mark.xfail(
def platform_supports_pcre():
output = cmd_output(GREP, '-P', "Don't", 'CHANGELOG.md', retcode=None)
- return output[0] == 0 and "name='pre_commit'," in output[1]
+ return output[0] == 0 and "Don't use readlink -f" in output[1]
xfailif_no_pcre_support = pytest.mark.xfail(
