Add previous commit to THANKS.

THANKS

@@ -134,7 +134,7 @@ Moritz Bunkus <moritz at bunkus dot org> - Matroska patches
 Morten Brix Pedersen <morten at wtf.dk> - Danish translation
 Nilmoni Deb <ndeb at ece.cmu.edu> - autoconf and Makefile fixes
 Olivier Aubert <oaubert at bat710.univ-lyon1.fr> - clone list patch
-Olivier Houchard <doginou @t dong d0t ci0 d0t org> - UDP & HTTP access output fix
+Olivier Houchard <doginou @t dong d0t ci0 d0t org> - UDP & HTTP access output fix, ffmpeg mux fix
 Olivier Pomel <pomel at via.ecp.fr> - original VLC code
 Ondrej Kuda aka Albert <kuda at natur dot cuni dot cz> - HTTP interface tips and fixes
 Øyvind Kolbu <oyvindk at world-online.no> - FreeBSD patches