test2305 (websocket) doesn't handle CURLE_AGAIN

[jay]

I did this

CI test fails in 2305 likely due to "curl_ws_recv returned 81" (81 == CURLE_AGAIN).

curl/tests/libtest/lib2305.c

Lines 50 to 65 in 06f65f7

	/* Three 4097-bytes frames are expected, 12291 bytes */
	while(i < 12291) {
	CURLcode result =
	curl_ws_recv(curl, buffer, sizeof(buffer), &nread, &meta);
	if(result) {
	printf("curl_ws_recv returned %d\n", (int)result);
	return;
	}
	printf("%u: nread %u Age %u Flags %x "
	"Offset %" CURL_FORMAT_CURL_OFF_T " "
	"Bytesleft %" CURL_FORMAT_CURL_OFF_T "\n",
	(int)i,
	nread, meta->age, meta->flags, meta->offset, meta->bytesleft);
	i += meta->len;
	fwrite(buffer, 1, nread, save);
	}

I expected the following

It is not documented that curl_ws_recv / send returns CURLE_AGAIN. I assume curl_ws_xxx is much like regular curl_easy_xxx send/recv?