Add git-gui patch

This fixes git-gui ignoring commit.gpgsign.

autopatches/ebuild_unpack_post/dev-scm/git/28d39f71134d8cde70096e22c74405f8b2eb05d2.patch

@@ -0,0 +1,29 @@
+From 28d39f71134d8cde70096e22c74405f8b2eb05d2 Mon Sep 17 00:00:00 2001
+From: Johannes Schindelin <johannes.schindelin@gmx.de>
+Date: Fri, 9 Sep 2016 14:25:46 +0200
+Subject: [PATCH] git-gui: respect commit.gpgsign again
+
+As of v2.9.0, `git commit-tree` no longer heeds the `commit.gpgsign`
+config setting. This broke committing in Git GUI.
+
+This fixes https://github.com/git-for-windows/git/issues/850
+
+Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
+---
+ git-gui/lib/commit.tcl | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/git-gui/lib/commit.tcl b/git-gui/lib/commit.tcl
+index 60edf99..e3183a6 100644
+--- a/git-gui/lib/commit.tcl
++++ b/git-gui/lib/commit.tcl
+@@ -388,6 +388,9 @@ A rescan will be automatically started now.
+ 	# -- Create the commit.
+ 	#
+ 	set cmd [list commit-tree $tree_id]
++	if {[is_config_true commit.gpgsign]} {
++		lappend cmd -S
++	}
+ 	foreach p [concat $PARENT $MERGE_HEAD] {
+ 		lappend cmd -p $p
+ 	}

hooks/auto_patch.bash

@@ -10,7 +10,7 @@
 source ${PALUDIS_EBUILD_DIR}/echo_functions.bash
 
 declare -r CONFIG_FILE="/etc/paludis/hooks/configs/auto_patch.conf"
-PATCH_DIR="/var/db/paludis/autopatches"
+PATCH_DIR="/etc/paludis/autopatches"
 # Configuration override
 [[ -f ${CONFIG_FILE} ]] && source ${CONFIG_FILE}