[Doctor test case] Redirect output to a log file
[Doctor test case] Redirect output to a log file

The output shown in the Jenkins console will now be
redirected to a file which will be available and linked
to the artifacts repository.

Change-Id: I2e9b5c2ab681a787aa0fc249844cc13feb581764
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

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