test.cli_network_test: fix TestNetworkDefault failure on Ubuntu

Signed-off-by: Alex Jia <chuanchang.jia@gmail.com>

test/cli_network_test.go

@@ -88,7 +88,13 @@ func (suite *PouchNetworkSuite) TestNetworkDefault(c *check.C) {
 	}
 	{
 		cmd := "ip r |grep default"
+		// The command output of "ip r | grep default" contains extra "proto static"
+		// on Ubuntu host, which is inconsistent with output in container
 		routeOnHost := icmd.RunCommand("bash", "-c", cmd).Stdout()
+		if strings.Contains(routeOnHost, "proto static") {
+			// keep command output consistent between Ubuntu host and container
+			routeOnHost = strings.Replace(routeOnHost, " proto static ", "", -1)
+		}
 		// Assign the host network to a container.
 		expct := icmd.Expected{
 			ExitCode: 0,