Fixes from PR

Author: cblackburn-igl

python/vyos/kea.py

@@ -373,11 +373,9 @@ def kea_parse_tsig_algo(algo_spec):
         raise ConfigError(f'Unsupported TSIG algorithm: {algo_spec}')
     return translate[algo_spec]
 
-
 def kea_parse_enable_disable(value):
     return True if value == 'enable' else False
 
-
 def kea_parse_ddns_settings(config):
     data = {}
 
@@ -411,7 +409,6 @@ def kea_parse_ddns_settings(config):
 
     return data
 
-
 def _ctrl_socket_command(inet, command, args=None):
     path = kea_ctrl_socket.format(inet=inet)