fix infinite recursion in the interface map macro. I wasn't jumping up to the base class (nsMsgMailNewsUrl) instead

I was re-enteringin nsNntpUrl =).
a=leaf

mailnews/news/src/nsNntpUrl.cpp

@@ -84,7 +84,7 @@ NS_INTERFACE_MAP_BEGIN(nsNntpUrl)
    NS_INTERFACE_MAP_ENTRY(nsINntpUrl)
    NS_INTERFACE_MAP_ENTRY(nsIMsgMessageUrl)
    NS_INTERFACE_MAP_ENTRY(nsIMsgI18NUrl)
-NS_INTERFACE_MAP_END_INHERITING(nsNntpUrl)
+NS_INTERFACE_MAP_END_INHERITING(nsMsgMailNewsUrl)
 
 ////////////////////////////////////////////////////////////////////////////////////
 // Begin nsINntpUrl specific support