Thus, as your patches evolve, you can record nuances like whether
the paricular patch should have To-list/Cc-maintainer or vice
versa and similar nuances, if your project is into that.
-From is prefilled from your current GIT_AUTHOR_IDENT, the To,
-Cc and Bcc can be prefilled from optional topgit.{to,cc,bcc}.
+From is prefilled from your current GIT_AUTHOR_IDENT, other headers
+can be prefilled from various optional topgit.* config options.
.topdeps: Contains the one-per-line list of branches
your patch depends on, pre-seeded with `tg create`. (Continuously