message: fix predefined ld_preload parsing issue in launch script
diff: @@ -839,6 +839,7 @@ def main():
  lst_valid = []
  tmp_ldpreload = os.environ["LD_PRELOAD"]
  for item in tmp_ldpreload.split(":"):
  + if item != "":
  matches = glob.glob(item)
  if len(matches) > 0:
  lst_valid.append(item)
  