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.
.. Common link and substitution definitions.
.. |hg(1)| replace:: **hg**\ (1)
.. _hg(1): hg.1.html
.. |hgrc(5)| replace:: **hgrc**\ (5)
.. _hgrc(5): hgrc.5.html
.. |hgignore(5)| replace:: **hgignore**\ (5)
.. _hgignore(5): hgignore.5.html