[repo/sql] don't do anything when value is None. This will avoid None to be turned into False in the case of a boolean for instance.
#! /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