[1901] small style fixes

src/lib/python/isc/config/cfgmgr.py

@@ -90,10 +90,15 @@ class ConfigManagerData:
 
         # Don't know what to do if it is more recent
         if data_version > config_data.BIND10_CONFIG_DATA_VERSION:
-            raise ConfigManagerDataReadError("Cannot load configuration file: version %d not yet supported" % config['version'])
+            raise ConfigManagerDataReadError(
+                      "Cannot load configuration file: version "
+                      "%d not yet supported" % config['version'])
+
         # At some point we might give up supporting older versions
         if data_version < 1:
-            raise ConfigManagerDataReadError("Cannot load configuration file: version %d no longer supported" % config['version'])
+            raise ConfigManagerDataReadError(
+                      "Cannot load configuration file: version "
+                      "%d no longer supported" % config['version'])
 
         # Ok, so we have a still-supported older version. Apply all
         # updates

src/lib/python/isc/config/tests/cfgmgr_test.py

@@ -92,7 +92,6 @@ class TestConfigManagerData(unittest.TestCase):
         config['version'] = config_data.BIND10_CONFIG_DATA_VERSION
         self.assertEqual(config, updated)
 
-
     def test_read_from_file(self):
         ConfigManagerData.read_from_file(self.writable_data_path, "b10-config.db")
         self.assertRaises(ConfigManagerDataEmpty,