[adapters] fix a name stomping error (entity)
Also give proper name to subject (role, not target),
and kill unused variable.
#! /bin/sh -e#if [ "$1" = configure ]; then if which install-docs >/dev/null 2>&1; then install-docs -i /usr/share/doc-base/cubicweb-doc fifi#DEBHELPER#exit 0