$ calino show-metadata --file cube-meta.ctf
{
  "DC.Creator" : "Mark Raynsford",
  "DC.Date" : "2022-04-30T12:05:20+00:00",
  "DC.Description" : "A fade texture.",
  "DC.Identifier" : "f9c2cf13-8919-4cfd-b88f-0a6c9e552d59",
  "DC.Rights" : "Public Domain",
  "DC.Title" : "Fade32"
}

$ calino show-metadata --file no-meta.ctf
calino: ERROR: no metadata section is present
