integration-cli: findContainerIP: replace dockerCmd

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

integration-cli/docker_utils_test.go

@@ -53,7 +53,7 @@ func dockerCmdWithResult(args ...string) *icmd.Result {
 
 func findContainerIP(c *testing.T, id string, network string) string {
 	c.Helper()
-	out, _ := dockerCmd(c, "inspect", fmt.Sprintf("--format='{{ .NetworkSettings.Networks.%s.IPAddress }}'", network), id)
+	out := cli.DockerCmd(c, "inspect", fmt.Sprintf("--format='{{ .NetworkSettings.Networks.%s.IPAddress }}'", network), id).Stdout()
 	return strings.Trim(out, " \r\n'")
 }