add rule for Ippen Digital

[numismatika]

No description provided.

[J0WI]

There is no host on www.idcdn.de

[numismatika]

yea there isn't, just copied it from the alternative name field of the cert.

[J0WI]

I wonder why this passed the tests @fuglede @jsha

[fuglede]

@J0WI: Because a run of https-everywhere-checker would have caused the issue, you mean? Adding such tests on a by-PR basis is the content of #3107.

[J0WI]

fetch-test.sh exposed the issue:

$ ./fetch-test.sh rules/IppenDigital.xml 
INFO Finished comparing http://idcdn.de/ -> https://idcdn.de/. Rulefile: rules/IppenDigital.xml.
INFO Finished comparing http://www.idcdn.de/ -> https://www.idcdn.de/. Rulefile: rules/IppenDigital.xml.
ERROR rules/IppenDigital.xml: Fetch error: http://www.idcdn.de/ => https://www.idcdn.de/: (6, 'Could not resolve host: www.idcdn.de')
INFO Finished in 1.30 seconds. Loaded rulesets: 1, URL pairs: 2.

[numismatika]

@J0WI second commit removes that host