[SM-2261]antrun-plugin enable-obr runs multiple times

git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx5/trunk@1573972 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/assembly/pom.xml b/assembly/pom.xml
index 7ca34f1..d1b719a 100644
--- a/assembly/pom.xml
+++ b/assembly/pom.xml
@@ -238,20 +238,16 @@
                 <executions>
                     <execution>
                         <id>enable-obr</id>
-                        <phase>generate-resources</phase>
+                        <phase>prepare-package</phase>
                         <goals>
                             <goal>run</goal>
                         </goals>
                         <configuration>
                             <target name="enable-obr">
-                                <echo message="Updating etc/startup.properties in unix assembly" />
+                                <echo message="Updating etc/startup.properties in assembly" />
                                 <concat destfile="target/dependencies/unix/apache-karaf-${karaf.version}/etc/startup.properties" append="true" eol="unix">
                                     <fileset file="target/classes/startup-obr.properties" />
                                 </concat>
-                                <echo message="Updating etc/startup.properties in windows assembly" />
-                                <concat destfile="target/dependencies/win/apache-karaf-${karaf.version}/etc/startup.properties" append="true" eol="dos">
-                                    <fileset file="target/classes/startup-obr.properties" />
-                                </concat>
                             </target>
                         </configuration>
                     </execution>