churn: deprecate -t option in favour of -T We use -T consistently elsewhere to refer to the --template option. The old -t option is now renamed to --oldtemplate so that -t still works. This has the benign side effect of introducing and immediately deprecating a new long option. We also test with both -t and -T options.

pull: print "pulling from foo" before accessing the other repo 1. This is consistent with pushing. 2. This allows to see the URL of the other repo in case accessing the repo fails, e.g. wrong ssh path or issues with the https certificate, without using --debug or showconfig paths. Additionally add test for this in the context of ssh with a wrong path.