diff --git a/.arcconfig b/.arcconfig
--- a/.arcconfig
+++ b/.arcconfig
@@ -1,5 +1,5 @@
 {
-  "phabricator.uri" : "https://phabricator.services.mozilla.com/",
-  "repository.callsign": "MOZILLACENTRAL",
+  "phabricator.uri" : "https://phabricator-dev.allizom.org/",
+  "repository.callsign": "MC",
   "history.immutable": false
 }
diff --git a/layout/tools/reftest/output.py b/layout/tools/reftest/output.py
--- a/layout/tools/reftest/output.py
+++ b/layout/tools/reftest/output.py
@@ -1,9 +1,11 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # 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/.
 
+This will fail flake8 linter
+
 from __future__ import absolute_import, print_function
 
 import json
 import threading
 from collections import defaultdict
diff --git a/layout/tools/reftest/reftestcommandline.py b/layout/tools/reftest/reftestcommandline.py
--- a/layout/tools/reftest/reftestcommandline.py
+++ b/layout/tools/reftest/reftestcommandline.py
@@ -15,11 +15,11 @@
 class ReftestArgumentsParser(argparse.ArgumentParser):
     def __init__(self, **kwargs):
         super(ReftestArgumentsParser, self).__init__(**kwargs)
 
         # Try to import a MozbuildObject. Success indicates that we are
-        # running from a source tree. This allows some defaults to be set
+        # running from a source tree. This allow some defaults to be set
         # from the source tree.
         try:
             from mozbuild.base import MozbuildObject
 
             self.build_obj = MozbuildObject.from_environment(cwd=here)