checkalive.pl handling of HTTP 429

[nemobis]

I'm not sure we're retrying as we should

** GET https://fictionfoundry.miraheze.org/w/api.php ==> 200 OK (1s)
Got it! Parsing the document... It's alive and powered by MediaWiki
Pausing for 5 seconds...

** GET https://fictionfoundry.miraheze.org/w/api.php ==> 429 Varnish Rate Limit Exceeded
Pausing for 5 seconds...

** GET https://fictionfoundry.miraheze.org/w/w/api.php ==> 404 Not Found (1s)
Pausing for 5 seconds...

** GET https://fictionfoundry.miraheze.org/w/wiki/api.php ==> 404 Not Found
Pausing for 5 seconds...

** GET https://fictionfoundry.miraheze.org/api.php ==> 404 Not Found
Pausing for 5 seconds...

** GET https://fictionfoundry.miraheze.org/w/api.php ==> 200 OK (1s)
Found api.php... Parsing the document...
Found a valid api.php and writing it to the list
Pausing for 5 seconds...