Added missing comma to data json for delay key

[regedarek]

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Description

I investigated this issue during which forced me to use .data method instead of deprecated .details.

And ImageMagick returns invalid json for gif images.

Example json of gif file before my change.

    ....
    "dispose": "Undefined",
    "delay": "10x100"
    "compression": "LZW",
    "orientation": "Undefined",
    "properties": {
      "date:create": "2017-10-12T14:49:42+00:00",
      "date:modify": "2017-10-12T12:54:23+00:00",
      "signature": "36ab25b583a7e4359c232e8f3e2ee6f372e34d8ece465b1de86ac670dee134e4"
    }, ...

After my change

    ....
    "dispose": "Undefined",
    "delay": "10x100",
    "compression": "LZW",
    "orientation": "Undefined",
    "properties": {
      "date:create": "2017-10-12T14:49:42+00:00",
      "date:modify": "2017-10-12T12:54:23+00:00",
      "signature": "36ab25b583a7e4359c232e8f3e2ee6f372e34d8ece465b1de86ac670dee134e4"
    }, ...

Without this fix my application is unable to upload gif images, because I check first if they are valid.

[raykov]

👍

[regedarek]

I tested it already on docker with debian, lastest imagemagick. And it generates valid json.

[regedarek]

when do you plan to release it?

[regedarek]

This is commit - which upgrade my career into another level!