ObjFW  Check-in [1cc51986a0]

		[requestString appendFormat: @"%@: %@\r\n", key, object];

	if (requestType == OF_HTTP_REQUEST_TYPE_POST) {
		OFString *contentType = [request MIMEType];

		if (contentType == nil)
			contentType = @"application/x-www-form-urlencoded; "
			    @"charset=UTF-8\r\n";
			    @"charset=UTF-8";

		[requestString appendFormat:
		    @"Content-Type: %@\r\n"
		    @"Content-Length: %d\r\n",
		    @"Content-Length: %zu\r\n",
		    contentType, [POSTData count] * [POSTData itemSize]];
	}

	if ([request protocolVersion].major == 1 &&
	    [request protocolVersion].minor == 0)
		[requestString appendString: @"Connection: keep-alive\r\n"];