phabricator: migrate [phabricator.auth] to [auth] This resurrects the warning mechanism removed in 20a4543e9a2b. I'm not worried about the copy/paste of the code for a brief transitional period.

dispatch: unify handling of None returned by a command function A command function may return None in place of 0 just for convenience, but dispatch() doesn't need to inherit that property. This patch makes it be friendly to callers.

dispatch: minor code refactor This hopefully makes things slightly easier to read. Differential Revision: https://phab.mercurial-scm.org/D3537

hgweb: drop unused argument 'tmpl' from webutil.compare()

hgweb: convert {comparison} to a mappinggenerator with named template No bare generator.

hgweb: rename 'context' argument of webutil.compare() to avoid name conflicts The meaning of 'context' depends on context. Here it is the number of the context lines in unified diff.

hgweb: convert comparison {lines} to a mappinggenerator with named template Bare generator can't be restarted.

hgweb: move getblock() closure out of compare() (Please use 'hg diff -w' to get readable diff from this patch.)

hgweb: move compline() closure out of compare()

hgweb: convert {diff} to a mappinggenerator with named template No more bare generator. Fortunately, this one is associated with a single template, so it can be a mappinggenerator.