MAINTAINER deprecated

[wkusnierczyk]

The MAINTAINER instruction is deprecated:

• https://docs.docker.com/engine/reference/builder/#/maintainer-deprecated

Consider implementing a warning with suggestion to replace with LABEL maintainer.

[jadametz]

Looks like this was solved in #69

[thomasbiddle]

@jadametz

Confirmed - just ran whatever the latest is:

Line 4: MAINTAINER "some@email.com"
Issue  Category      Title                 Description
    1  Deprecation   Deprecated as of      This INSTRUCTION is deprecated as of Docker 1.13
                     Docker 1.13

This can be closed.

[nexdrew]

Thanks everyone! Not sure why this was left open, closing now.

[dserodio]

I added a MAINTAINER line to the www.fromlatest.io example and it didn't complain