Fix expected unlimited value for test

Author: brandonbell

proc_limits_test.go

@@ -31,7 +31,7 @@ func TestLimits(t *testing.T) {
 		want uint64
 		have uint64
 	}{
-		{name: "cpu time", want: -1, have: l.CPUTime},
+		{name: "cpu time", want: 18446744073709551615, have: l.CPUTime},
 		{name: "open files", want: 2048, have: l.OpenFiles},
 		{name: "msgqueue size", want: 819200, have: l.MsqqueueSize},
 		{name: "nice priority", want: 0, have: l.NicePriority},