fix a wrong naming in the previous commit

src/bookmark.py

@@ -117,7 +117,7 @@ def remove(value):
 def stanza_storage(method):
     """Generate a <storage/> stanza with the conference elements."""
     storage = Bookmarks()
-    for b in (b for bookmark in bookmark if b.method == method):
+    for b in (b for b in bookmark if b.method == method):
         storage.append(b.stanza())
     return storage
 

src/core/core.py

@@ -429,7 +429,7 @@ class Core(object):
             res = []
             current = []
             for char in char_list:
-                assert len(char) > 0
+                assert char
                 # Transform that stupid char into what we actually meant
                 if char == '\x1f':
                     char = '^/'