Fix __install_umount target parameter

cdist/conf/type/__install_umount/manifest

@@ -1,25 +0,0 @@
-#!/bin/sh -e
-#
-# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
-#
-# This file is part of cdist.
-#
-# cdist is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# cdist is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with cdist. If not, see <http://www.gnu.org/licenses/>.
-#
-
-# set defaults
-# TODO is this neccesary or should this be handled using the usual parameter/default workflow?
-if [ ! -f "$__object/parameter/target" ]; then
-	echo "/target" > "$__object/parameter/target"
-fi

cdist/conf/type/__install_umount/parameter/default/target

@@ -0,0 +1 @@
+/target

cdist/conf/type/__install_umount/parameter/optional

@@ -0,0 +1 @@
+target