10l, update ref value for ffm since default flags changed and are stored in the file

Originally committed as revision 22673 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/ref/lavf/ffm

@@ -1,3 +1,3 @@
-03fc7f90bba9361cf6128cd4655fb20f *./tests/data/lavf/lavf.ffm
+b6acf782a38d313153b68c4ca204fc90 *./tests/data/lavf/lavf.ffm
 376832 ./tests/data/lavf/lavf.ffm
 ./tests/data/lavf/lavf.ffm CRC=0xf361ed74