mail a reply to the head of the series,
	where the head is chosen from the cover letter, the
	`--in-reply-to`, and the first patch mail, in this order.
	`deep` threading makes every mail a reply to the previous one.
	A true boolean value is the same as `shallow`, and a false
	value disables threading.

format.signOff::
	A boolean value which lets you enable the `-s/--signoff` option of
	format-patch by default. *Note:* Adding the `Signed-off-by` trailer to a
	patch should be a conscious act and means that you certify you have
	the rights to submit this work under the same open source license.
	Please see the 'SubmittingPatches' document for further discussion.

format.coverLetter::
	A boolean that controls whether to generate a cover-letter when
	format-patch is invoked, but in addition can be set to "auto", to
	generate a cover-letter only when there's more than one patch.
	Default is false.

format.outputDirectory::
	Set a custom directory to store the resulting files instead of the
	current working directory. All directory components will be created.

format.filenameMaxLength::
	The maximum length of the output filenames generated by the
	`format-patch` command; defaults to 64.  Can be overridden
	by the `--filename-max-length=<n>` command line option.

format.useAutoBase::
	A boolean value which lets you enable the `--base=auto` option of
	format-patch by default. Can also be set to "whenAble" to allow
	enabling `--base=auto` if a suitable base is available, but to skip
	adding base info otherwise without the format dying.

format.notes::
	Provides the default value for the `--notes` option to
	format-patch. Accepts a boolean value, or a ref which specifies
	where to get notes. If false, format-patch defaults to
	`--no-notes`. If true, format-patch defaults to `--notes`. If
	set to a non-boolean value, format-patch defaults to
	`--notes=<ref>`, where `ref` is the non-boolean value. Defaults
	to false.
+
If one wishes to use the ref `refs/notes/true`, please use that literal
instead.
+
This configuration can be specified multiple times in order to allow
multiple notes refs to be included. In that case, it will behave
similarly to multiple `--[no-]notes[=]` options passed in. That is, a
value of `true` will show the default notes, a value of `<ref>` will
also show notes from that notes ref and a value of `false` will negate
previous configurations and not show notes.
+
For example,
+
------------
[format]
	notes = true
	notes = foo
	notes = false
	notes = bar
------------
+
will only show notes from `refs/notes/bar`.

format.mboxrd::
	A boolean value which enables the robust "mboxrd" format when
	`--stdout` is in use to escape "^>+From " lines.

format.noprefix::
	If set, do not show any source or destination prefix in patches.
	This is equivalent to the `diff.noprefix` option used by `git
	diff` (but which is not respected by `format-patch`). Note that
	by setting this, the receiver of any patches you generate will
	have to apply them using the `-p0` option.