Update stream-of-characters2.py

Author: kamyu104

Python/stream-of-characters2.py

@@ -2,7 +2,7 @@
 #                         , p is the number of patterns
 #        query: O(m + z), m is the total size of query string
 #                       , z is the number of all matched strings 
-#                       , query would be O(m) if we don't use all the matched patterns
+#                       , query time would be O(m) if we don't use all the matched patterns
 # Space: O(t + p^2), t is the total size of ac automata trie
 #                  , space could be further improved by DAT (double-array trie)