Merge branch 'issue265' into 'buster-testing'

Issue 265

See merge request sympl/sympl!129

backup/backup.d/conf.d/50-drivers.conf

+# Modified/updated driver from default backup2l.conf file, which doesn't
+# raise warnings from tar. Note that this also don't update the access
+# time, which is useful.
+
+
+# The following driver is equivalent to the built-in DRIVER_TAR_GZ driver, but
+# does not change the access times of the original files during backup
+# (Adrian Bunk, Gundolf Kiefer)
+DRIVER_TAR_GZ ()
+{
+    case $1 in
+        -test)
+            require_tools tar
+            echo "ok"
+            ;;
+        -suffix)
+            echo "tar.gz"
+            ;;
+        -create)        # Arguments: $2 = BID, $3 = archive file name, $4 = file list file
+            tar czf $3 --no-recursion -T $4 --atime-preserve 2>&1 \
+                | grep -v 'tar: Removing leading .* from .* names'
+            ;;
+        -toc)           # Arguments: $2 = BID, $3 = archive file name
+            tar tzf $3 | sed 's#^#/#'
+            ;;
+    esac
+}

backup/debian/changelog

+sympl-backup (10.0.190908.0) stable; urgency=medium
+
+  * Added backup2l driver to prevent warnings from tar.
+
+ -- Paul Cammish <sympl@kelduum.net>  Sun, 08 Sep 2019 16:24:00 +0100
+
 sympl-backup (10.0.190731.0) stable; urgency=medium
 
   * Force backups to be run as root.