make test: fix text output when non-interactive

Output everything to stdout instead of mixing stdout and stderr.

Change-Id: I3146760e068fda7f1ffaaf36683d5153dcda4561
Signed-off-by: Klement Sekera <ksekera@cisco.com>

test/framework.py

@@ -706,6 +706,14 @@ class VppTestRunner(unittest.TextTestRunner):
         """Class maintaining the results of the tests"""
         return VppTestResult
 
+    def __init__(self, stream=sys.stderr, descriptions=True, verbosity=1,
+                 failfast=False, buffer=False, resultclass=None):
+        # ignore stream setting here, use hard-coded stdout to be in sync
+        # with prints from VppTestCase methods ...
+        super(VppTestRunner, self).__init__(sys.stdout, descriptions,
+                                            verbosity, failfast, buffer,
+                                            resultclass)
+
     def run(self, test):
         """
         Run the tests