Move files around.

misc/update_scripts/nix_scripts/multiprocessing/backfill.php

@@ -0,0 +1,8 @@
+<?php
+declare(ticks=1);
+require('.do_not_run/require.php');
+use newznab\libraries\Forking;
+// Check if argument 1 is numeric, which is to limit article count.
+(new Forking())->processWorkType(
+	'backfill', (isset($argv[1]) && is_numeric($argv[1]) && $argv[1] > 0 ? array(0 => $argv[1]) : array(0 => false))
+);