Change the maven build so that the source distro unpacks to a different directory (as the ant one does)

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/io/trunk@493981 13f79535-47bb-0310-9956-ffa450edef68

Author: Niall Pemberton

project.properties

@@ -35,6 +35,9 @@ maven.javadoc.links=http://java.sun.com/j2se/1.4/docs/api/
 maven.javadoc.source=1.3
 maven.javadoc.overview=src/java/org/apache/commons/io/overview.html
 
+# Make the source distro unzip to a different directory
+maven.dist.src.assembly.dir=${maven.dist.assembly.dir}/src/${maven.final.name}-src
+
 maven.checkstyle.properties=checkstyle.xml
 
 maven.jdiff.new.tag=CURRENT