Test cases fix after path expansion

pkg/kubelet/cm/cgroup_manager_linux_test.go

@@ -81,15 +81,19 @@ func TestLibcontainerAdapterAdaptToSystemdAsCgroupFs(t *testing.T) {
 		},
 		{
 			input:    "/Burstable",
-			expected: "Burstable.slice/",
+			expected: "/Burstable.slice",
 		},
 		{
 			input:    "/Burstable/pod_123",
-			expected: "Burstable.slice/Burstable-pod_123.slice/",
+			expected: "/Burstable.slice/Burstable-pod_123.slice",
 		},
 		{
 			input:    "/BestEffort/pod_6c1a4e95-6bb6-11e6-bc26-28d2444e470d",
-			expected: "BestEffort.slice/BestEffort-pod_6c1a4e95_6bb6_11e6_bc26_28d2444e470d.slice/",
+			expected: "/BestEffort.slice/BestEffort-pod_6c1a4e95_6bb6_11e6_bc26_28d2444e470d.slice",
+		},
+		{
+			input:    "/kubepods",
+			expected: "/kubepods.slice",
 		},
 	}
 	for _, testCase := range testCases {