Import patches-unapplied version 2.511 to ubuntu/bionic-proposed

Imported using git-ubuntu import.

Changelog parent: dcf2b800f6

New changelog entries:
  * Whitelist preserving "unowned" /var/log/journal. Maybe systemd package
    should own the directory, and only adjust the permissions in
    postinst. LP: #1754332

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.511) bionic; urgency=medium
+
+  * Whitelist preserving "unowned" /var/log/journal. Maybe systemd package
+    should own the directory, and only adjust the permissions in
+    postinst. LP: #1754332
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Fri, 16 Mar 2018 18:36:56 +0000
+
 livecd-rootfs (2.510) bionic; urgency=medium
 
   * Rename the directory containing the systemd override file for subiquity to

live-build/ubuntu-cpc/hooks/099-cleanup.chroot

@@ -27,7 +27,7 @@ do
 done
 
 # Remove un-owned log directories
-whitelisted_dirs=(/var/log/fsck)
+whitelisted_dirs=(/var/log/fsck /var/log/journal)
 
 for log_d in $(find /var/log/* -type d)
 do