Debian policy 9.2.1 needs --allow-bad-names

[Joachim Zobel <jz-2017@heute-morgen.de>]

Hi.

Debian policy 9.2.1 says: "When maintainers choose a new hardcoded or
dynamically generated username for packages to use, they should start
this username with an underscore." By now this requires an 

adduser --allow-bad-names

in the script creating the user. Since I followed this policy, I'll
have to adapt my package vzlogger. Alternatively I could I rename the
user and ignore 9.2.1, the package is only in testing. Or is this a bug
in adduser?

Sincerely,
Joachim