ccnx: Always use key name when signing content object

Change-Id: I6a44290eb40cd8e4f6cf29d1f94765ba90914c02
diff --git a/ccnx/ccnx-wrapper.h b/ccnx/ccnx-wrapper.h
index f3438c9..914293c 100644
--- a/ccnx/ccnx-wrapper.h
+++ b/ccnx/ccnx-wrapper.h
@@ -87,7 +87,7 @@
   getLocalPrefix ();
 
   Bytes
-  createContentObject(const Name &name, const void *buf, size_t len, int freshness = DEFAULT_FRESHNESS, const Name &keyName=Name());
+  createContentObject(const Name &name, const void *buf, size_t len, int freshness = DEFAULT_FRESHNESS, const Name &keyNameParam=Name());
 
   int
   putToCcnd (const Bytes &contentObject);