wrong help/error message suggesting usage of invalid argument --p2p-port

start (run) witness_node
waiting a little and then terminate it with control -c
run witness_node again & the following message is shown:

Essentially requests to start node with witness_node --p2p-port option

root@74e8ff387a0a:~/peerplays-network# ./witness_node
2541618ms th_a       accounts_list_plugin.cpp:128  list_accounts        ] accounts list plugin:  list_accounts()
2541618ms th_a       bookie_plugin.cpp:468         plugin_initialize    ] bookie plugin: plugin_startup() begin
2541618ms th_a       db_management.cpp:294         force_slow_replays   ] enabling slow replays
2541618ms th_a       bookie_plugin.cpp:501         plugin_initialize    ] bookie plugin: plugin_startup() end
2541618ms th_a       witness.cpp:91                plugin_initialize    ] witness plugin:  plugin_initialize() begin
2541619ms th_a       witness.cpp:105               plugin_initialize    ] Public Key: PPY6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
2541619ms th_a       witness.cpp:123               plugin_initialize    ] witness plugin:  plugin_initialize() end
2541619ms th_a       object_database.cpp:106       open                 ] Opening object database from /home/peerplays/peerplays-network/witness_node_data_dir/blockchain ...
2541814ms th_a       object_database.cpp:111       open                 ] Done opening object database.
2541817ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 51.222.110.110:9777
2541818ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 95.216.90.243:9777
2541818ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 96.46.48.98:19777
2541818ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 96.46.48.98:29777
2541819ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 96.46.48.98:39777
2541819ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 96.46.48.98:49777
2541819ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 96.46.48.98:59777
2541821ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 192.99.111.177:9777
2543738ms th_a       application.cpp:172           reset_p2p_node       ] Adding seed node 77.105.14.79:9777
Unable to listen for connections on port 9777, retrying in a few seconds
You can wait for it to become available, or restart this program using
the --p2p-port option to specify another port

root@74e8ff387a0a:~/peerplays-network# ./witness_node  --p2p-port 1234
Error parsing command line: unrecognised option '--p2p-port'

Expected behaviour:

The message should be showing --p2p-endpoint

root@74e8ff387a0a:~/peerplays-network# ./witness_node  --help | grep p2p
  --p2p-endpoint arg (=0.0.0.0:9777)    Endpoint for P2P node to listen on