Minor fix in chroot-wrapper

tools/web/chroot-wrapper

@@ -11,4 +11,4 @@ case "${BASENAME}" in
         ;;
 esac
 
-schroot -c "$(schroot -l | head -1)" -- "${BASENAME}" "${@}"
+schroot -c "$(schroot -l | tail -n 1)" -- "${BASENAME}" "${@}"