[[ -L ${chr}/usr/bin/esearch ]] || pkgs+=( esearch )
[[ -x ${chr}/usr/bin/strace ]] || pkgs+=( strace )
[[ -x ${chr}/usr/bin/time ]] || pkgs+=( time )
+[[ -x ${chr}/usr/bin/diffstat ]] || pkgs+=( diffstat )
[[ ${#pkgs[@]} -eq 0 ]] || cros_sdk -- sudo emerge -1 ${pkgs[@]}
sudo sed -i -e '/^# inc/s:^# *::' ${chr}/etc/nanorc