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

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

third_party/git/contrib/thunderbird-patch-inline/appp.sh

@@ -0,0 +1,55 @@
+#!/bin/sh
+# Copyright 2008 Lukas Sandström <luksan@gmail.com>
+#
+# AppendPatch - A script to be used together with ExternalEditor
+# for Mozilla Thunderbird to properly include patches inline in e-mails.
+
+# ExternalEditor can be downloaded at http://globs.org/articles.php?lng=en&pg=2
+
+CONFFILE=~/.appprc
+
+SEP="-=-=-=-=-=-=-=-=-=# Don't remove this line #=-=-=-=-=-=-=-=-=-"
+if [ -e "$CONFFILE" ] ; then
+	LAST_DIR=$(grep -m 1 "^LAST_DIR=" "${CONFFILE}"|sed -e 's/^LAST_DIR=//')
+	cd "${LAST_DIR}"
+else
+	cd > /dev/null
+fi
+
+PATCH=$(zenity --file-selection)
+
+if [ "$?" != "0" ] ; then
+	#zenity --error --text "No patchfile given."
+	exit 1
+fi
+
+cd - > /dev/null
+
+SUBJECT=$(sed -n -e '/^Subject: /p' "${PATCH}")
+HEADERS=$(sed -e '/^'"${SEP}"'$/,$d' $1)
+BODY=$(sed -e "1,/${SEP}/d" $1)
+CMT_MSG=$(sed -e '1,/^$/d' -e '/^---$/,$d' "${PATCH}")
+DIFF=$(sed -e '1,/^---$/d' "${PATCH}")
+
+CCS=$(echo -e "$CMT_MSG\n$HEADERS" | sed -n -e 's/^Cc: \(.*\)$/\1,/gp' \
+	-e 's/^Signed-off-by: \(.*\)/\1,/gp')
+
+echo "$SUBJECT" > $1
+echo "Cc: $CCS" >> $1
+echo "$HEADERS" | sed -e '/^Subject: /d' -e '/^Cc: /d' >> $1
+echo "$SEP" >> $1
+
+echo "$CMT_MSG" >> $1
+echo "---" >> $1
+if [ "x${BODY}x" != "xx" ] ; then
+	echo >> $1
+	echo "$BODY" >> $1
+	echo >> $1
+fi
+echo "$DIFF" >> $1
+
+LAST_DIR=$(dirname "${PATCH}")
+
+grep -v "^LAST_DIR=" "${CONFFILE}" > "${CONFFILE}_"
+echo "LAST_DIR=${LAST_DIR}" >> "${CONFFILE}_"
+mv "${CONFFILE}_" "${CONFFILE}"