message: Add missing quote in response
diff: @@ -195,7 +195,7 @@ namespace ccf
  http::headers::WWW_AUTHENTICATE,
  fmt::format(
  "Signature realm=\"Signed request access\", "
  - "headers=\"(request-target) {}",
  + "headers=\"(request-target) {}\"",
  http::headers::DIGEST));
  ctx->set_response_body(std::move(msg));
  }
  