message: test: Add test for unknown args
diff: @@ -21,6 +21,16 @@ class ConfArgsTest(BitcoinTestFramework):
  with open(os.path.join(self.nodes[0].datadir, 'bitcoin.conf'), 'a', encoding='utf-8') as conf:
  conf.write('includeconf={}\n'.format(inc_conf_file_path))
  + self.nodes[0].assert_start_raises_init_error(
  + expected_msg='Error parsing command line arguments: Invalid parameter -dash_cli',
  + extra_args=['-dash_cli=1'],
  + )
  + with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
  + conf.write('dash_conf=1\n')
  + with self.nodes[0].assert_debug_log(expected_msgs=['Ignoring unknown configuration value dash_conf']):
  + self.start_node(0)
  + self.stop_node(0)
  +
  with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
  conf.write('-dash=1\n')
  self.nodes[0].assert_start_raises_init_error(expected_msg='Error reading configuration file: parse error on line 1: -dash=1, options in configuration file must be specified without leading -')
  