Net::HTTPBadResponse: wrong header line format

https://sentry.gitlab.net/gitlab/gitlabcom/issues/3379322/?referrer=gitlab_plugin

Net::HTTPBadResponse: wrong header line format
  config/initializers/net_http_response_patch.rb:34:in `each_response_header'
    raise Net::HTTPBadResponse, 'wrong header line format' if value.nil?
  lib/gitlab/http.rb:54:in `perform_request'
    httparty_perform_request(http_method, path, options_with_timeouts) do |fragment|
  app/services/web_hook_service.rb:123:in `make_request'
    Gitlab::HTTP.post(url,
  app/services/web_hook_service.rb:72:in `execute'
    make_request(parsed_url.to_s)
  app/workers/web_hook_worker.rb:27:in `perform'
    WebHookService.new(hook, data, hook_name, jid).execute
...
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wrong header line format