WildTypePattern.toString: do not parenthesesise generic type list

It is unnecessary to represent a pattern list 'A,B,C' as '(A,B,C)'. Not
only does it look ugly in a type signature like 'org.acme.Foo<(A,B,C)>',
but also is it not valid Java syntax. While the latter might not be
strictly necessary in a String representation, it certainly is
desirable, if such representations are ever used to generate code or
@AspectJ pointcut annotations.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

org.aspectj.matcher/src/main/java/org/aspectj/weaver/patterns/WildTypePattern.java

@@ -1196,7 +1196,7 @@ public String toString() {
 		}
 		if (typeParameters != null && typeParameters.size() != 0) {
 			buf.append("<");
-			buf.append(typeParameters.toString());
+			buf.append(typeParameters.toString().replaceFirst("^.(.*).$", "$1"));
 			buf.append(">");
 		}
 		if (includeSubtypes) {