typo.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@30526 71c3de6d-444a-0410-be80-ed276b4c234a

test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java

@@ -850,6 +850,7 @@ public abstract class HudsonTestCase extends TestCase implements RootAction {
             if (p.startsWith("-"))
                 props.remove(p.substring(1));
         }
+        return props;
     }
 
     /**