docs: def _xfs_estimate_output(out):
      '''
      Parse xfs_estimate output.
      '''
      spc = re.compile(r"\s+")
      data = {}
      for line in [l for l in out.split("\n") if l.strip()][1:]:
          directory, bsize, blocks, megabytes, logsize = spc.sub(" ", line).split(" ")
          data[directory] = {
              'block _size': bsize,
              'blocks': blocks,
              'megabytes': megabytes,
              'logsize': logsize,
          }
  
      return data