Merge branch 'dl/merge-autostash-rebase-quit-fix'

The stash entry created by "git rebase --autosquash" to keep the
initial dirty state were discarded by mistake upon "git rebase
--quit", which has been corrected.

* dl/merge-autostash-rebase-quit-fix:
  rebase: save autostash entry into stash reflog on --quit

diff --cc Documentation/git-rebase.txt
Simple merge

diff --cc builtin/rebase.c
Simple merge