tests/int/cgroups: fix for misc controller

The misc cgroup controller, introduced in Linux 5.13, is still unknown
to systemd, and thus it cannot delegate it. Add an appropriate fixup
to the test case, similar to an earlier commit 601cf58.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

tests/integration/cgroups.bats

@@ -49,8 +49,8 @@ function setup() {
 			if [ "$(id -u)" = "0" ]; then
 				check_cgroup_value "cgroup.controllers" "$(cat /sys/fs/cgroup/machine.slice/cgroup.controllers)"
 			else
-				# Filter out hugetlb as systemd is unable to delegate it.
-				check_cgroup_value "cgroup.controllers" "$(sed 's/ hugetlb//' </sys/fs/cgroup/user.slice/user-"$(id -u)".slice/cgroup.controllers)"
+				# Filter out hugetlb and misc as systemd is unable to delegate them.
+				check_cgroup_value "cgroup.controllers" "$(sed -e 's/ hugetlb//' -e 's/ misc//' </sys/fs/cgroup/user.slice/user-"$(id -u)".slice/cgroup.controllers)"
 			fi
 		else
 			check_cgroup_value "cgroup.controllers" "$(cat /sys/fs/cgroup/cgroup.controllers)"