doveadm import - strange warning

[Ralf Hildebrandt]

* Daniel Tröder <troeder at univention.de>:

> Just guessing…
> 
> The signature of the command is:
> doveadm [-Dv] import [-S socket_path] [-s] -u user source_location
> dest_parent search_query
> 
> You supply "" as dest_parent which I guess could mean ".", and that may
> be "/root" when run as root. Try "INBOX" or "restore_folder" and see if
> the error vanishes.

With "INBOX", nothing changes on the output (although the script
doesn't restore properly anymore)

With ".", I get: 

doveadm(restore at backup.invalid): Error: chdir(/root/) failed: Permission denied (euid=1001(theid) egid=1001(theid) missing +x perm: /root, dir owned by 0:0 mode=0700)
doveadm(restore at backup.invalid): Error: chdir(/root) failed: Permission denied
doveadm(restore at backup.invalid): Error: Couldn't create mailbox ./INBOX: Invalid mailbox name: Contains '.' part

I still think this is an obscure bug :)
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