bpo-33830: Fix an example in http.client docs for 404. (GH-7780)

bpo-33830: Fix an example in http.client docs for 404. (GH-7780) · python/cpython@f0af4c5

Original file line number	Diff line number	Diff line change
@@ -497,6 +497,7 @@ Here is an example session that uses the ``GET`` method::
`497`	`497`	`b'<!doctype html>\n<!--[if"...`
`498`	`498`	`...`
`499`	`499`	`>>> # Example of an invalid request`
	`500`	`+ >>> conn = http.client.HTTPSConnection("docs.python.org")`
`500`	`501`	`>>> conn.request("GET", "/parrot.spam")`
`501`	`502`	`>>> r2 = conn.getresponse()`
`502`	`503`	`>>> print(r2.status, r2.reason)`