base-files: add logging for configuration import

Make sysupgrade backup import more verbose.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

package/base-files/files/sbin/sysupgrade

@@ -287,6 +287,7 @@ if [ -n "$CONF_RESTORE" ]; then
 	fi
 
 	[ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
+	v "Restoring config files..."
 	tar -C / -x${TAR_V}zf "$CONF_RESTORE"
 	exit $?
 fi