Update string-matching-in-an-array.py

Author: kamyu104

Python/string-matching-in-an-array.py

@@ -1,7 +1,7 @@
-# Time:   O(n + m + z) = O(n), n is the total size of patterns
-#                            , m is the total size of query string
-#                            , z is the number of all matched strings
-#                            , O(n) = O(m) = O(z) in this problem
+# Time:  O(n + m + z) = O(n), n is the total size of patterns
+#                           , m is the total size of query string
+#                           , z is the number of all matched strings
+#                           , O(n) = O(m) = O(z) in this problem
 # Space: O(t), t is the total size of ac automata trie
 
 import collections