util: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

url: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

sshserver: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

sshpeer: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

patch: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

commands: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

changegroup: use `iter(callable, sentinel)` instead of while True This is functionally equivalent, but is a little more concise.

extdiff: isolate path variable of saved command to independent paragraph Otherwise, the whole paragraph wouldn't be translated.

extdiff: export __doc__ of saved command for translation

extdiff: refactor closure of saved diff command as a top-level class This allows us to collect __doc__ for translation.

i18n: use inspect.getsourcelines() to obtain lineno from func or class Before, func must be a function object. I want to make it parse docstring of classes, too.

chg: just take it as EOF if recv() returns 0 hgc->sockfd is a blocking stream socket. recv() should never return 0 other than EOF. See 4fc4b8cc9957 for the original problem.

vfs: use propertycache for open The current open method is currently behaving like a property cache. We use our utility decorator to make this explicit.

help: add example of '[templates]' usage V2: - move from shortest() with minlength 8 to minlength 4 - mention [templates] in config.txt - better describe the difference between [templatealias] and [templates] V3: - choose a better example template

check-commit: allow underbars in cffi_-prefix function names It seems reasonable to give cffi functions slightly more verbose names in some circumstances, given the way they interface with C.