Close some more ZipFiles.

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1626501 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/test/java/org/apache/maven/plugin/rar/RarMojoTest.java b/src/test/java/org/apache/maven/plugin/rar/RarMojoTest.java
index ec573ed..742e77d 100644
--- a/src/test/java/org/apache/maven/plugin/rar/RarMojoTest.java
+++ b/src/test/java/org/apache/maven/plugin/rar/RarMojoTest.java
@@ -129,6 +129,8 @@
         assertTrue( entries.hasMoreElements() );
 
         assertEquals( 0, getSizeOfExpectedFiles( entries, expectedFiles ) );
+
+        rar.close();
     }
 
     public void testBasicRarWithDescriptor()