Formatting fix

Black complaints

util/config_match.py

@@ -16,6 +16,7 @@ class FakeDevice:
     def name(self):
         return "cmdline"
 
+
 def main() -> int:
     dps = json.loads(" ".join(sys.argv[1:]))
     device = FakeDevice(dps)

util/match_against.py

@@ -19,6 +19,7 @@ class FakeDevice:
     def name(self):
         return "cmdline"
 
+
 def main() -> int:
     dps = json.loads(" ".join(sys.argv[2:]))
     device = FakeDevice(dps)