Use NSLog consistently for debug output

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@34920 72102866-910b-0410-8b05-ffd578937521

Source/NSURLHandle.m

@@ -548,6 +548,14 @@ static Class		NSURLHandleClass = 0;
   return [self availableResourceData];
 }
 
+/* Private method ... subclasses override this to enable debug to be
+ * turned off and on.
+ */
+- (void) setDebug: (BOOL)aFlag
+{
+  return;
+}
+
 /**
  * Returns the current status of the handle.
  */