Bug 1293397: fix fake to make tests pass? r=armenzg

MozReview-Commit-ID: AuQBk2w8Ka1

taskcluster/mach_commands.py

@@ -4,6 +4,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+
 from __future__ import absolute_import, print_function, unicode_literals
 
 import json

taskcluster/taskgraph/test/test_target_tasks.py

@@ -17,7 +17,7 @@ from mozunit import main
 class FakeTryOptionSyntax(object):
 
     def __init__(self, message, task_graph):
-        pass
+        self.trigger_tests = 0
 
     def task_matches(self, attributes):
         return 'at-at' in attributes