?: How to get *long* Key-ID

[Gregor Zattler]

Hi there,

i tried to 

--trusted-key KEYID          "ulimately trust this key"

but gpg complains KEYID "is not a valid long keyID".

I tried very hard, read the FAQ and GPH but found no way to see this
long key-ID.

What do i have to do?


Ciao, Gregor