sys-fs/e2fsprogs: skip m_rootdir_acl test (fails on btrfs)

Bug: https://github.com/tytso/e2fsprogs/issues/158
Closes: https://bugs.gentoo.org/905221
Signed-off-by: Sam James <sam@gentoo.org>

sys-fs/e2fsprogs/e2fsprogs-1.47.1.ebuild

@@ -57,6 +57,11 @@ src_prepare() {
 	# violation due to mktexfmt invocation
 	rm -r doc || die "Failed to remove doc dir"
 
+	cat <<-'EOF' > tests/m_rootdir_acl/script || die
+	echo "$test_name: $test_description: skipped (bgo#905221, fails on btrfs)"
+	return 0
+	EOF
+
 	# Prevent included intl cruft from building, bug #81096
 	sed -i -r \
 		-e 's:@LIBINTL@:@LTLIBINTL@:' \