Add 'current' symlink to backup destinations

ccollect

@@ -861,6 +861,16 @@ while [ "${source_no}" -lt "${no_sources}" ]; do
         _techo "Warning: rsync failed with return code $ret."
     fi
 
+    #
+    # Create symlink to newest backup
+    #
+    # shellcheck disable=SC2010
+    latest_dir="$(ls -${TSORT}p1 "${ddir}" | grep '/$' | head -n 1)" || \
+        _exit_err "Failed to list content of ${ddir}."
+
+    ln -snf "${ddir}${latest_dir}" "${ddir}current" || \
+        _exit_err "Failed to create 'current' symlink."
+
     #
     # post_exec
     #