Trac #21325: fixup test .subsequence being identity

Author: dkrenn

src/sage/combinat/k_regular_sequence.py

@@ -352,7 +352,10 @@ def subsequence(self, a, b):
 
             sage: C.subsequence(0, 4)
             2-regular sequence 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, ...
-            sage: C.subsequence(1, 0) is C
+
+        ::
+
+            sage: C.subsequence(1, 0, minimize=False) is C
             True
 
         The following test that the range for `c` in the code