Fix some formatting issues

vppcfg/tests.py

@@ -44,7 +44,8 @@ def example_validator(_yaml):
 
 class YAMLTest(unittest.TestCase):
     """This test suite takes a YAML configuration file and holds it against the syntax
-    (Yamale) and semantic validators, returning errors in case of validation failures."""
+    (Yamale) and semantic validators, returning errors in case of validation failures.
+    """
 
     def __init__(self, testName, yaml_filename, yaml_schema):
         # calling the super class init varies for different python versions.  This works for 2.7

vppcfg/vpp/applier.py

@@ -125,7 +125,8 @@ class Applier(VPPApi):
 
     def lcp_create(self, ifname, host_if_name):
         """Create a linux control plane interface pair for an interface given by name
-        (ie GigabitEthernet3/0/0) under a Linux TAP device name host_if_name (ie e3-0-0)"""
+        (ie GigabitEthernet3/0/0) under a Linux TAP device name host_if_name (ie e3-0-0)
+        """
         pass
 
     def set_interface_mac(self, ifname, mac):

vppcfg/vpp/reconciler.py

@@ -181,7 +181,8 @@ class Reconciler:
 
     def __prune_bridgedomains(self):
         """Remove bridge-domains from VPP, if they do not occur in the config. If any interfaces are
-        found in to-be removed bridge-domains, they are returned to L3 mode, and tag-rewrites removed."""
+        found in to-be removed bridge-domains, they are returned to L3 mode, and tag-rewrites removed.
+        """
         for idx, bridge in self.vpp.cache["bridgedomains"].items():
             bridgename = f"bd{int(idx)}"
             _config_ifname, config_iface = bridgedomain.get_by_name(