wmlscope: do not report 'INTERNAL:' macros in the macro reference

data/tools/wmlscope

@@ -337,7 +337,9 @@ class CrossRefLister(CrossRef):
     def extracthelp(self, pref, fp):
         "Deliver all macro help comments in HTML form."
         # Bug: finds only the first definition of each macro in scope.
-        doclist = [x for x in self.xref.keys()]
+        # macros starting with INTERNAL: are only for internal use
+        # and aren't supposed to be reported in the macro reference
+        doclist = [x for x in self.xref.keys() if not x.startswith("INTERNAL:")]
         doclist.sort(key=lambda element: self.xref[element][0])
         outstr = ""
         filename = None