fix temp dest dir

uberspace-backup.sh

@@ -107,7 +107,7 @@ while read -r line; do
     # Example:
     #   DEST=/tmp/uberspace-backup/user@example.com/2019-01-01/virtual
     #   DEST_FINAL=/media/Uberspace/user@example.com/2019-01-01/
-    DEST="${TEMPDIR}/${DEST}"
+    DEST="${TEMPDIR}/${DEST_REL}"
     DEST_FINAL="$(dirname "${BACKUPDIR}/${DEST_REL}")"
 
     logecho "DEBUG: $DEST"