merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'

third_party/git/Documentation/git-quiltimport.txt

@@ -0,0 +1,64 @@
+git-quiltimport(1)
+==================
+
+NAME
+----
+git-quiltimport - Applies a quilt patchset onto the current branch
+
+
+SYNOPSIS
+--------
+[verse]
+'git quiltimport' [--dry-run | -n] [--author <author>] [--patches <dir>]
+		[--series <file>] [--keep-non-patch]
+
+
+DESCRIPTION
+-----------
+Applies a quilt patchset onto the current Git branch, preserving
+the patch boundaries, patch order, and patch descriptions present
+in the quilt patchset.
+
+For each patch the code attempts to extract the author from the
+patch description.  If that fails it falls back to the author
+specified with --author.  If the --author flag was not given
+the patch description is displayed and the user is asked to
+interactively enter the author of the patch.
+
+If a subject is not found in the patch description the patch name is
+preserved as the 1 line subject in the Git description.
+
+OPTIONS
+-------
+
+-n::
+--dry-run::
+	Walk through the patches in the series and warn
+	if we cannot find all of the necessary information to commit
+	a patch.  At the time of this writing only missing author
+	information is warned about.
+
+--author Author Name <Author Email>::
+	The author name and email address to use when no author
+	information can be found in the patch description.
+
+--patches <dir>::
+	The directory to find the quilt patches.
++
+The default for the patch directory is patches
+or the value of the `$QUILT_PATCHES` environment
+variable.
+
+--series <file>::
+	The quilt series file.
++
+The default for the series file is <patches>/series
+or the value of the `$QUILT_SERIES` environment
+variable.
+
+--keep-non-patch::
+	Pass `-b` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]).
+
+GIT
+---
+Part of the linkgit:git[1] suite