config is in shorewall6 5.0.4-1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10  | #!/bin/sh -e
. /usr/share/debconf/confmodule 
if [ "$1" = "configure" ]
then 
    # reset restart help
    db_clear shorewall6/dont_restart || true
    db_go
fi
 |