diff --git a/simplenews.drush.inc b/simplenews.drush.inc
index 57a336c..8683b3f 100644
--- a/simplenews.drush.inc
+++ b/simplenews.drush.inc
@@ -1,40 +1,41 @@
 <?php
+
 /**
  * @file
- *
  * Drush commands for administer Simplenews.
  */
-use Drupal\simplenews\Mail\MailerInterface;
+
 use Drupal\simplenews\Spool\SpoolStorageInterface;
 
 /**
  * Implements hook_drush_command().
  */
 function simplenews_drush_command() {
-  $items = array();
+  $items = [];
 
-  $items['simplenews-spool-count'] = array(
+  $items['simplenews-spool-count'] = [
     'description' => 'Print the current simplenews mail spool count',
-    'aliases' => array('sn-sc'),
-    'drupal dependencies' => array('simplenews'),
-    'options' => array(
+    'aliases' => ['sn-sc'],
+    'drupal dependencies' => ['simplenews'],
+    'options' => [
       'pipe' => dt('Just print the count value to allow parsing'),
-    )
-  );
+    ],
+  ];
 
-  $items['simplenews-spool-send'] = array(
+  $items['simplenews-spool-send'] = [
     'description' => 'Send the defined amount of mail spool entries.',
-    'examples' => array(
-      'drush sn-ss' => dt('Send the default amount of mails, as defined by the simplenews_throttle variable.'),
+    'examples' => [
+      'drush sn-ss' => dt('Send the default amount of mails, as defined by the mail.throttle settings.'),
       'drush sn-ss 0' => dt('Send all mails.'),
-      'drush sn-ss 100' => dt('Send 100 mails'),
-    ),
-    'options' => array(
+      'drush sn-ss 100' => dt('Send 100 mails.'),
+    ],
+    'options' => [
+      'limit' => dt('Number of mails to send. 0 sends all emails. If not specified, will be set to the value of the mail.throttle in the module settings config.'),
       'pipe' => dt('Just print the sent and remaining count on separate lines to allow parsing'),
-    ),
-    'aliases' => array('sn-ss'),
-    'drupal dependencies' => array('simplenews'),
-  );
+    ],
+    'aliases' => ['sn-ss'],
+    'drupal dependencies' => ['simplenews'],
+  ];
 
   return $items;
 }
@@ -46,12 +47,12 @@ function drush_simplenews_spool_count() {
 
   $count = \Drupal::service('simplenews.spool_storage')->countMails();
 
-  $no_description = drush_get_option(array('p', 'pipe'));
+  $no_description = drush_get_option(['p', 'pipe']);
   if ($no_description) {
     drush_print_pipe($count);
   }
   else {
-    drush_log(dt('Current simplenews mail spool count: @count', array('@count' => $count)), 'status');
+    drush_log(dt('Current simplenews mail spool count: @count', ['@count' => $count]), 'status');
   }
 }
 
@@ -82,13 +83,14 @@ function drush_simplenews_spool_send($limit = FALSE) {
   // Report the number of sent mails.
   if ($sent > 0) {
     $remaining = \Drupal::service('simplenews.spool_storage')->countMails();
-    if (drush_get_option(array('p', 'pipe'))) {
-      // For pipe, print the sent first and then the remaining count, separated by a space.
+    if (drush_get_option(['p', 'pipe'])) {
+      // For pipe, print the sent first and then the remaining count, separated
+      // by a space.
       drush_print_pipe($sent . " " . $remaining);
     }
     else {
-      drush_log(dt('Sent @count mails from the queue in @sec seconds.', array('@count' => $sent, '@sec' => $durance)), 'status');
-      drush_log(dt('Remaining simplenews mail spool count: @count', array('@count' => $remaining)), 'status');
+      drush_log(dt('Sent @count mails from the queue in @sec seconds.', ['@count' => $sent, '@sec' => $durance]), 'status');
+      drush_log(dt('Remaining simplenews mail spool count: @count', ['@count' => $remaining]), 'status');
     }
   }