Rename libav.regression.ref --> lavf.regression.ref.

This matches the new name of the test target.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18228 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Makefile

@@ -135,7 +135,7 @@ fulltest test: codectest lavftest seektest
 
 FFMPEG_REFFILE   = $(SRC_PATH)/tests/ffmpeg.regression.ref
 FFSERVER_REFFILE = $(SRC_PATH)/tests/ffserver.regression.ref
-LAVF_REFFILE     = $(SRC_PATH)/tests/libav.regression.ref
+LAVF_REFFILE     = $(SRC_PATH)/tests/lavf.regression.ref
 ROTOZOOM_REFFILE = $(SRC_PATH)/tests/rotozoom.regression.ref
 SEEK_REFFILE     = $(SRC_PATH)/tests/seek.regression.ref