* "git send-email" learned the alias file format used by the sendmail
program (in a simplified form; we obviously do not feed pipes).
- * "git am" learned am.threeWay configuration variable.
-
* Traditionally, external low-level 3-way merge drivers are expected
to produce their results based solely on the contents of the three
variants given in temporary files named by %O, %A and %B on their