Agregate the root GNU testsuite results

[sylvestre]

We have currently 73 skipped tests, they are probably because of that.

[niyaznigmatullin]

Just for the information, there are also tests that are skipped when running as root

[sylvestre]

Good point
we could parse the test to create a list of tests containing require_root_

[xxyzz]

The current test script "util/run-gnu-test.sh" already tests these root tests, but it's only enabled on GitHub Actions:

coreutils/util/run-gnu-test.sh

Lines 45 to 47 in 1054c5c

	if test -z "$1" && test -n "$CI"; then
	sudo make -j "$(nproc)" check-root SUBDIRS=. RUN_EXPENSIVE_TESTS=yes RUN_VERY_EXPENSIVE_TESTS=yes VERBOSE=no gl_public_submodule_commit="" srcdir="${path_GNU}" TEST_SUITE_LOG="tests/test-suite-root.log" || :
	fi

[jfinkels]

This came up in #3880 (comment)

[xxyzz]

Root tests are tested in GitHub CI. If you search "skip-seek-past-dev" in the CI log, it's at the end of the log, but this test is skipped because /dev/root doesn't exist: https://github.com/uutils/coreutils/runs/8177093173?check_suite_focus=true#step:10:37091