systemd: add patch to fix with glibc 2.26

packages/sysutils/systemd/patches/systemd-0003-remove-xlocale.h.patch

@@ -0,0 +1,27 @@
+From 0c50b8332092178378257c2de800fb6b6b4a8706 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 3 Jul 2017 08:45:04 -0700
+Subject: [PATCH] parse-util: Do not include unneeded xlocale.h
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Backport [ partial https://github.com/systemd/systemd/commit/284d1cd0a12cad96a5ea61d1afb0dd677dbd147e]
+
+ src/basic/parse-util.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
+index c98815b9b..a0eb45805 100644
+--- a/src/basic/parse-util.c
+ b/src/basic/parse-util.c
+@@ -23,7 +23,6 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+-#include <xlocale.h>
+ 
+ #include "alloc-util.h"
+ #include "extract-word.h"
+-- 
+2.13.2
+