bpo-32739: Show default value for rotate() (GH-5517)

bpo-32739: Show default value for rotate() (GH-5517) · python/cpython@42e8ea9

Original file line number	Diff line number	Diff line change
`@@ -311,11 +311,14 @@ counts, but the output will exclude results with counts of zero or less.`
`311`	`311`
`312`	`312`	`.. versionadded:: 2.7`
`313`	`313`
`314`		`- .. method:: rotate(n)`
	`314`	`+ .. method:: rotate(n=1)`
`315`	`315`
`316`	`316`	`Rotate the deque n steps to the right. If n is negative, rotate to`
`317`		`- the left. Rotating one step to the right is equivalent to:`
`318`		- ``d.appendleft(d.pop())``.
	`317`	`+ the left.`
	`318`	`+`
	`319`	`+ When the deque is empty, rotating one step to the right is equivalent to`
	`320`	+ ``d.appendleft(d.pop())``, and rotating one step to the left is
	`321`	+ equivalent to ``d.append(d.popleft())``.
`319`	`322`
`320`	`323`
`321`	`324`	`Deque objects also provide one read-only attribute:`