tests/fate-run: Pass bitexact flags to enc_dec_pcm() output

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/fate-run.sh

@@ -137,7 +137,7 @@ enc_dec_pcm(){
     cleanfiles=$encfile
     encfile=$(target_path ${encfile})
     ffmpeg -i $src_file "$@" -f $out_fmt -y ${encfile} || return
-    ffmpeg -flags +bitexact -fflags +bitexact -i ${encfile} -c:a pcm_${pcm_fmt} -f ${dec_fmt} -
+    ffmpeg -flags +bitexact -fflags +bitexact -i ${encfile} -c:a pcm_${pcm_fmt} -fflags +bitexact -f ${dec_fmt} -
 }
 
 FLAGS="-flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact"