libraries/libtxc_dxtn: Fixed file ending with no newline.
libraries/libtxc_dxtn: Fixed file ending with no newline.

Signed-off-by: dsomero <dae8ac18105ddd758ba5f28feddefd6acb687160@slackbuilds.org>

panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds,panosmdma/SlackOnly-SlackBuilds