Add a missing comma in tiff_encoder.pix_fmts

Patch by Stefano Sabatini ( stefano sabatini-lala poste it )

Originally committed as revision 12765 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/tiffenc.c

@@ -455,7 +455,7 @@ AVCodec tiff_encoder = {
                               PIX_FMT_MONOBLACK, PIX_FMT_MONOWHITE,
                               PIX_FMT_YUV420P, PIX_FMT_YUV422P,
                               PIX_FMT_YUV444P, PIX_FMT_YUV410P,
-                              PIX_FMT_YUV411P
+                              PIX_FMT_YUV411P,
                               -1}
 
 };