./cli.js --lang en --images --audio --video "example/*.gmi"
if cmp -s "example/test.html" "example/expected.html"; then
  printf "PASS: test.html matches expected.html!\n"
else
  printf "FAIL: test.html DOES NOT match expected.html!\n"
  cmp "example/test.html" "example/expected.html"
  diff "example/test.html" "example/expected.html"
  exit 1
fi