Fixing topdocstring issue

Author: euler16

custom_directives.py

@@ -25,7 +25,7 @@ def run(self):
 
         try:
             text = open(filename).read()
-            text_no_docstring = self.docstring_regex.sub('', text)
+            text_no_docstring = self.docstring_regex.sub('', text, count = 0)
 
             code_block = nodes.literal_block(text=text_no_docstring)
             return [code_block]