'Gifdiff' compares two GIF files (either images or animations) for identical
visual appearance. An animation and an optimized version of the same animation
should compare as the same. Gifdiff exits with status 0 if the images are
the same, 1 if they're different, and 2 if there was some error.

Usage: gifdiff [OPTION]... FILE1 FILE2

Options:
  -q, --brief                   Don't report detailed differences.
  -w, --ignore-redundancy       Ignore differences in redundant frames.
  -h, --help                    Print this message and exit.
  -v, --version                 Print version number and exit.

Report bugs to <ekohler@gmail.com>.