bug fix: when running manually a test, get stuck in echo
bug fix: when running manually a test, get stuck in echo

Change-Id: I0fd6c514b913a709289cabe44fed01a7ce5e953e
Signed-off-by: Morgan Richomme <863ecccd07b4194c40ddc432b982c8c67e56599a@orange.com>

mywulin/functest,opnfv/functest,opnfv/functest,mywulin/functest