Wmaintainer-script-should-not-use-piuparts-variable
The tag is present in Lintian version 2.104.244. That is the most recent version we know about.
The maintainer script appears to reference one of the
PIUPARTS_* variables such as PIUPARTS_TEST or
PIUPARTS_PHASE.
These variables are intended to be used by custom piuparts(1)
scripts and not by maintainer scripts themselves.
Please remove the references to this variable.
Refer to the piuparts(1) manual page and https://piuparts.debian.org/doc/README.html for details.
Visibility: warning
Check: scripts