gst/avi/gstavidemux.c: Fix memleak. patch from Sebastien Cote (bug #139958)

Original commit message from CVS:
* gst/avi/gstavidemux.c: (gst_avi_demux_reset): Fix memleak.
patch from Sebastien Cote (bug #139958)

ChangeLog

+2004-04-13  David Schleef  <ds@schleef.org>
+
+	* gst/avi/gstavidemux.c: (gst_avi_demux_reset): Fix memleak.
+	patch from Sebastien Cote (bug #139958)
+
 2004-04-13  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* examples/gstplay/Makefile.am: