Merge branch 'maint'

* maint:
bisect: fix bad rev checking in "git bisect good"
revision.c: make --date-order overriddable
git-submodule: Avoid 'fatal: cannot describe' message
Force the medium pretty format on calls to git log
Fix section about backdating tags in the git-tag docs
Document option --only of git commit
Documentation/git-request-pull: Fixed a typo ("send" -> "end")

diff --cc builtin-commit.c
Simple merge

diff --cc git-bisect.sh
Simple merge