static inner should fix 1.2 probs

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@528047 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/PatternSet.java

@@ -143,7 +143,7 @@ public class PatternSet extends DataType implements Cloneable {
         }
     }
 
-    private class InvertedPatternSet extends PatternSet {
+    private static class InvertedPatternSet extends PatternSet {
         private InvertedPatternSet(PatternSet p) {
             setProject(p.getProject());
             addConfiguredPatternset(p);