filtered out throwaway func name when getting <%include> kwargs

lib/mako/parsetree.py

diff --git a/lib/mako/parsetree.py b/lib/mako/parsetree.py
index aef1388..ebed303 100644
--- a/lib/mako/parsetree.py
+++ b/lib/mako/parsetree.py
@@ -220,11 +220,11 @@
     __keyword__ = 'include'
     def __init__(self, keyword, attributes, **kwargs):
         super(IncludeTag, self).__init__(keyword, attributes, ('file', 'import', 'args'), (), ('file',), **kwargs)
-        self.page_args = ast.PythonCode("foo(%s)" % attributes.get('args', ''), self.lineno, self.pos, self.filename)
+        self.page_args = ast.PythonCode("__DUMMY(%s)" % attributes.get('args', ''), self.lineno, self.pos, self.filename)
     def declared_identifiers(self):
         return []
     def undeclared_identifiers(self):
-        identifiers = self.page_args.undeclared_identifiers
+        identifiers = self.page_args.undeclared_identifiers.difference(util.Set(["__DUMMY"]))
         return identifiers.union(super(IncludeTag, self).undeclared_identifiers())
     
 class NamespaceTag(Tag):

test/template.py

diff --git a/test/template.py b/test/template.py
index 82952d5..3627dad 100644
--- a/test/template.py
+++ b/test/template.py
@@ -200,6 +200,7 @@
             <%page args="a,b,c"/>
             this is b.  ${a}, ${b}, ${c}
         """)
+        print lookup.get_template("a").code
         assert flatten_result(lookup.get_template("a").render(a=7,b=8)) == "this is a this is b. 7, 8, 5"
 
     def test_include_withargs(self):