`--help` option duplication in phino rewrite command output

[yegor256]

See:

$ phino rewrite --help
Usage: phino rewrite [--log-level LEVEL] [--rule FILE] [--input FORMAT]
                     [--output FORMAT] [--sweet] [--normalize] [--nothing]
                     [--shuffle] [--omit-listing] [--omit-comments]
                     [--max-depth DEPTH] [FILE]

  Rewrite the program

Available options:
  --log-level LEVEL        Log level (DEBUG, INFO, WARNING, ERROR, NONE)
                           (default: INFO)
  --rule FILE              Path to custom rule
  --input FORMAT           Program input format (phi, xmir) (default: phi)
  --output FORMAT          Program output format (phi, xmir) (default: phi)
  --sweet                  Print 𝜑-program using syntax sugar
  --normalize              Use built-in normalization rules
  --nothing                Just desugar provided 𝜑-program
  --shuffle                Shuffle rules before applying
  --omit-listing           Omit full program listing in XMIR output
  --omit-comments          Omit comments in XMIR output
  --max-depth DEPTH        Max amount of rewritng cycles (default: 25)
  FILE                     Path to input file
  -h,--help                Show this help text
  -h,--help                Show this help text

At the bottom, I see the last line duplicated.