Fix args.

mwparserfromhell/nodes/heading.py

@@ -32,7 +32,7 @@ class Heading(Node):
     def __unicode__(self):
         return ("=" * self.level) + self.title + ("=" * self.level)
 
-    def __strip__(self, normalize=True, collapse=True):
+    def __strip__(self, normalize, collapse):
         return self.title
 
     @property

mwparserfromhell/nodes/html_entity.py

@@ -53,7 +53,7 @@ class HTMLEntity(Node):
             return u"&#x{0};".format(self.value)
         return u"&#{0};".format(self.value)
 
-    def __strip__(self, normalize=True, collapse=True):
+    def __strip__(self, normalize, collapse):
         if normalize:
             return self.normalize()
         return self

mwparserfromhell/nodes/tag.py

@@ -100,7 +100,7 @@ class Tag(Node):
             result += "</" + unicode(self.tag) + " " * self.close_padding + ">"
         return result
 
-    def __strip__(self, normalize=True, collapse=True):
+    def __strip__(self, normalize, collapse):
         if self.type in self.TAGS_VISIBLE:
             return self.contents.strip_code(normalize, collapse)
         return None

mwparserfromhell/nodes/text.py

@@ -31,7 +31,7 @@ class Text(Node):
     def __unicode__(self):
         return unicode(self.value)
 
-    def __strip__(self, normalize=True, collapse=True):
+    def __strip__(self, normalize, collapse):
         return self
 
     @property

mwparserfromhell/wikicode.py

@@ -253,7 +253,7 @@ class Wikicode(StringMixIn):
     def strip_code(self, normalize=True, collapse=True):
         nodes = []
         for node in self.nodes:
-            stripped = node.__strip__(normalize)
+            stripped = node.__strip__(normalize, collapse)
             if stripped:
                 nodes.append(unicode(stripped))