fix url action

Author: HenriWahl

Nagstamon/helpers.py

@@ -477,7 +477,7 @@ def get_distro():
         return dist_name.lower(), dist_version, dist_id
 
 
-def urlify(self, string):
+def urlify(string):
     """
     return a string that fulfills requirements for URLs
     exclude several chars

Nagstamon/qui/widgets/treeview.py

@@ -583,7 +583,7 @@ def cell_clicked(self):
 
     @Slot(str)
     def action_menu_custom_response(self, action):
-        # How many rows do we have
+        # How many rows do we have?
         list_rows = []
         for index in self.selectedIndexes():
             if index.row() not in list_rows: