fix ZendOAuth\Client\prepareOAuth to statuses/update_with_media

[jkuwait]

                $oauthHeaderValue = $this->getToken()->toHeader(
                    $this->getRequest()->getUriString(),
                    $this->_config,
                    $this->_getSignableParameters()
                );

to

                $oauthHeaderValue = $this->getToken()->toHeader(
                    $this->getRequest()->getUriString(),
                    $this->_config,
                    (($this->getEncType() == self::ENC_FORMDATA) ? NULL : $this->_getSignableParameters())
                );

The former does not work with statuses/update_with_media
If there is a better solution I hope that reform
Thank you

[weierophinney]

This repository has been closed and moved to laminas/laminas-oauth; a new issue has been opened at laminas/laminas-oauth#7.