Re: [PATCH v2 0/5] improve one-shot variable detection with shell function

>     @@ t/t3430-rebase-merges.sh: test_expect_success 'refuse to merge ancestors of HEAD
>       	git checkout --orphan unrelated &&
>      -	(GIT_AUTHOR_NAME="Parsnip" GIT_AUTHOR_EMAIL="root@example.com" \
>      -	 test_commit second-root) &&
>     -+	test_env GIT_AUTHOR_NAME="Parsnip" GIT_AUTHOR_EMAIL="root@example.com" \
>     -+		test_commit second-root &&
>     ++	test_commit --author "Parsnip <root@example.com>" second-root &&

>     @@ t/check-non-portable-shell.pl: sub err {
>       		err q(quote "$val" in 'local var=$val');
>      -	/^\s*([A-Z0-9_]+=(\w*|(["']).*?\3)\s+)+(\w+)/ and exists($func{$4}) and
>      +	/\b([A-Z0-9_]+=(\w*|(["']).*?\3)\s+)+(\w+)/ and !/test_env.+=/ and exists($func{$4}) and
>     - 		err '"FOO=bar shell_func" assignment extends beyond "shell_func"';
>     + 		err '"FOO=bar shell_func" is not portable (use test_env FOO=bar shell_func)';