google apparently is issuing otpauth:// URIs with a lowercase secret, so try to deal with it.

earlier version of got would fail when trying to `got add' a file that was already added (or committed.) Since the error message was potentially scary, got_add tries to be smart and issue a `got info file' first to see whether the file can be added, and only then eventually issues `got add'. This whole dance is now moot. got doesn't warn for files already added. (also, this code could have been simpler from the beginning.) Noticed since the pipe trick in the got sub was failing on linux. Issue reported by Christoph Cremer, thanks!

last time I couldn't find the right incantation to prevent gpg from prompting when the target file already exists.

UNICODE is subtle, better not slightly tweaks the argument unless we really need them.

Otherwise we output gibberish and the pattern argument to `plass find' may not even match the entries. Issue reported by Anton Kasimov, thank you!