id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
259	listenOn doesn't accept valid endpoint strings	dawuud		"
this regular expression:
https://github.com/warner/foolscap/blob/2813a289dafc419ebb2886b5825de7f86c4cf7d2/src/foolscap/pb.py#L503

has got to be wrong if the intention is to allow valid server endpoint descriptor strings. once such valid string which is not allowed by this regex is:

```
tcp:interface=127.0.0.1:1234
```"	defect	closed	major	undecided	network	0.9.1	fixed