Backport bugfixes from upstream

Most notably this commit fixes #1419501 that caused mock traceback when
running with --new-chroot.

Resolves: #1419501
diff --git a/0011-man-Document-when-pam_systemd-sets-XDG_RUNTIME_DIR-5.patch b/0011-man-Document-when-pam_systemd-sets-XDG_RUNTIME_DIR-5.patch
new file mode 100644
index 0000000..225f52c
--- /dev/null
+++ b/0011-man-Document-when-pam_systemd-sets-XDG_RUNTIME_DIR-5.patch
@@ -0,0 +1,37 @@
+From 6c03191c817094b67352a8553b5df9850eaecd88 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Adrian=20Heine=20n=C3=A9=20Lang?= <mail@adrianheine.de>
+Date: Tue, 14 Mar 2017 22:42:18 +0100
+Subject: [PATCH] man: Document when pam_systemd sets XDG_RUNTIME_DIR (#5570)
+
+https://github.com/systemd/systemd/blob/f97b34a6/src/login/pam_systemd.c#L439
+(cherry picked from commit 5c50321ca9c660dac39976ab29ed2f28f872628d)
+---
+ man/pam_systemd.xml | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml
+index 6e1aa0d..cef5445c 100644
+--- a/man/pam_systemd.xml
++++ b/man/pam_systemd.xml
+@@ -88,7 +88,7 @@
+       and so will the user's slice unit.</para></listitem>
+ 
+       <listitem><para>If the last concurrent session of a user ends,
+-      the <varname>$XDG_RUNTIME_DIR</varname> directory and all its
++      the user runtime directory <filename>/run/user/$UID</filename> and all its
+       contents are removed, too.</para></listitem>
+     </orderedlist>
+ 
+@@ -192,7 +192,8 @@
+         offers the greatest possible file system feature set the
+         operating system provides. For further details, see the <ulink
+         url="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
+-        Base Directory Specification</ulink>.</para></listitem>
++        Base Directory Specification</ulink>. <varname>$XDG_RUNTIME_DIR</varname>
++        is not set if the current user is not the original user of the session.</para></listitem>
+       </varlistentry>
+ 
+     </variablelist>
+-- 
+2.9.3
+