define command {
  command_name check_whitehall_overdue
  command_line /usr/lib/nagios/plugins/check_http_timeout_noncrit -S -H <%= @whitehall_hostname %> -u '<%= @whitehall_overdue_url %>' -a <%= @http_username %>:<%= @http_password %> -s '{"overdue":0}'
}

define command {
  command_name check_whitehall_overdue
  command_line /usr/lib/nagios/plugins/check_http_timeout_noncrit --useragent="check_http_timeout_noncrit/whitehall_overdue" -S -H <%= @whitehall_hostname %> -u '<%= @whitehall_overdue_url %>' -a <%= @http_username %>:<%= @http_password %> -s '{"overdue":0}'
}

Add the user agent to the Whitehall overdue check
Add the user agent to the Whitehall overdue check

Otherwise, I believe the requests are made with "Ruby" as the user
agent, which is a bit vague.
