If GPG will allow us to use the full fingerprint here (ie, "36A1D7869245C8950F966E92D8576A8BA88D21E9"), let's please do so.  However, why is this included here at all, and hard-coded at that?  Won't hard-coding this default value break (for example) our test.docker.io uploads, where our key has a different fingerprint?  (specifically, "740B314AE3941731B942C66ADF4FD13717AAD7D6")