fix check for greo result

mv CLANG1/logs/*.dec*.txt logs_dec_msan/

# sanity check: ensure that we have DTX frames in the cut bitstreams

grep_result=$(grep -r "Extracted 0 frames!" logs_enc/)

if [ "$grep_result" != "" ]; then

grep_exit_code=0

grep -r "Extracted 0 frames!" logs_enc/ || grep_exit_code=$?

if [ $grep_exit_code -ne 1 ]; then

  echo "Some bitstreams did not contain any SID frame!"

  echo -e "Check the input signals and/or the VAD performance!\n"

  echo "$grep_result"