adjust imagecacherender hook to reduce logs and adjust for cron run drift

web/modules/custom/imagecache_render/imagecache_render.module

@@ -62,15 +62,11 @@ function imagecache_render_imagecache_external_needs_refresh_alter(&$needs_refre
     date_default_timezone_set('America/New_York');
     $current_hour = (int) date('G');
     if ($current_hour >= 3 && $current_hour < 5) {
-        if (filemtime($filepath) < \Drupal::time()->getRequestTime() - 60 * 60 * 24) {
+        if (filemtime($filepath) < \Drupal::time()->getRequestTime() - 60 * 60 * 24 - (30 * 60)) {
             \Drupal::logger('imagecache_external')->notice('@filepath older than 24 hours, refreshing', [
                 '@filepath' => $filepath,
             ]);
             $needs_refresh = TRUE;
-        } else {
-            \Drupal::logger('imagecache_external')->notice('@filepath is less than 24 hours. Will not refresh.', [
-                '@filepath' => $filepath,
-            ]);
         }
     }
 }