patchbomb: rename argument to avoid shadowing patch module

convert: deprecate --authors in preference for --authormap This aligns the authormap option with the other three mapping options. The old --authors option is still supported and 'hg help convert -v' will still show it.

patchbomb: show prompt and selection in non-interactive mode Akin to 01ada7b1861d for the custom patchbomb prompt.

patchbomb: use ui.promptchoice for diffstat to allow localization of choices The extra check for ui.interacive from patchbomb's prompt function is not needed here. Format boolean prompt as in filemerge.py.

tests: unify test-issue*

tests: unify test-globalopts

tests: unify test-git-*

tests: unify test-filebranch

tests: unify test-extension

tests: unify test-execute-bit

tests: unify test-empty-group

merge with stable

convert: better grouping of command line flags in help We normally put related command line flags after one another.

convert: help string cleanups