{
  "command_prefix": "@exam",
  "irc_server": "chat.freenode.net",
  "irc_port": "6697",
  "irc_use_tls": true,
  "irc_nickname": "dogexam",
  "irc_password": "",
  "irc_channels": ["#hacksoc", "#cs-york", "#cs-york-dev"],
  "slack_bridge_nick_prefix": "york-hackbot",
  "owner_nicks": ["icydoge"],
  "help_text": "Usage: @exam help | date | next | add MODULE1, MODULE2 | delete MODULE | time MODULE | all ; Detail and list of modules: https://ebornet.com/dogexam.html"
}

{
  "command_prefix": "@exam",
  "irc_server": "chat.freenode.net",
  "irc_port": 6697,
  "irc_use_tls": true,
  "irc_nickname": "dogexam",
  "irc_password": "",
  "irc_channels": ["#hacksoc", "#cs-york", "#cs-york-dev"],
  "slack_bridge_nick_prefix": "york-hackbot",
  "owner_nicks": ["icydoge"],
  "help_text": "Usage: @exam help | date | next | add MODULE1, MODULE2 | delete MODULE | time MODULE | all ; Detail and list of modules: https://ebornet.com/dogexam.html"
}

Fix example config port format.
Fix example config port format.