diff --git a/includes/commerce_discount.admin.inc b/includes/commerce_discount.admin.inc
index 8942243..93c18dd 100644
--- a/includes/commerce_discount.admin.inc
+++ b/includes/commerce_discount.admin.inc
@@ -220,10 +220,10 @@ function commerce_discount_form($form, &$form_state, CommerceDiscount $commerce_
     '#parents' => array('commerce_discount_fields'),
   );
 
-  // Vertical tabs container
+  // Vertical tabs container.
   $form['commerce_discount_fields']['additional_settings'] = array(
-      '#type' => 'vertical_tabs',
-      '#weight' => 99,
+    '#type' => 'vertical_tabs',
+    '#weight' => 99,
   );
 
   field_attach_form('commerce_discount', $commerce_discount, $form['commerce_discount_fields'], $form_state);
@@ -263,7 +263,7 @@ function commerce_discount_form($form, &$form_state, CommerceDiscount $commerce_
     ),
   );
 
-  // Add compatibility fields to the vertical tabs container
+  // Add compatibility fields to the vertical tabs container.
   $form['commerce_discount_fields']['commerce_discount_compatibility'] = array(
     '#type' => 'fieldset',
     '#title' => t('Compatibility with other discounts'),
@@ -322,11 +322,12 @@ function commerce_discount_fields_ajax_callback($form, &$form_state) {
  * Form API validation callback for the type form.
  */
 function commerce_discount_form_validate($form, &$form_state) {
-  // return vertical tab field values back to their expected location in the form_state
-  $form_state['values']['commerce_discount_fields']['commerce_compatibility_strategy'] = $form_state['values']['commerce_discount_fields']['commerce_discount_compatibility']['commerce_compatibility_strategy']; 
+  // Return vertical tab field values back to their expected location in
+  // the form_state.
+  $form_state['values']['commerce_discount_fields']['commerce_compatibility_strategy'] = $form_state['values']['commerce_discount_fields']['commerce_discount_compatibility']['commerce_compatibility_strategy'];
   $form_state['values']['commerce_discount_fields']['commerce_compatibility_selection'] = $form_state['values']['commerce_discount_fields']['commerce_discount_compatibility']['commerce_compatibility_selection'];
   unset($form_state['values']['commerce_discount_fields']['commerce_discount_compatibility']['commerce_compatibility_strategy'], $form_state['values']['commerce_discount_fields']['commerce_discount_compatibility']['commerce_compatibility_selection']);
-  
+
   field_attach_form_validate('commerce_discount', $form_state['commerce_discount'], $form['commerce_discount_fields'], $form_state);
 
   if (!empty($form_state['values']['name'])) {
diff --git a/modules/commerce_discount_usage/commerce_discount_usage.module b/modules/commerce_discount_usage/commerce_discount_usage.module
index 223c5d6..a8c66c4 100644
--- a/modules/commerce_discount_usage/commerce_discount_usage.module
+++ b/modules/commerce_discount_usage/commerce_discount_usage.module
@@ -215,7 +215,8 @@ function commerce_discount_usage_views_api() {
  * Implements hook_form_FORM_ID_alter().
  */
 function commerce_discount_usage_form_commerce_discount_form_alter(&$form, $form_state) {
-  // Move usage fields into a single "additional_settings" vertical tab fieldset  
+  // Move usage fields into a single "additional_settings"
+  // vertical tab fieldset.
   $form['commerce_discount_fields']['commerce_discount_usage'] = array(
     '#type' => 'fieldset',
     '#title' => t('Maximum usage'),
@@ -224,17 +225,19 @@ function commerce_discount_usage_form_commerce_discount_form_alter(&$form, $form
   $form['commerce_discount_fields']['commerce_discount_usage']['discount_usage_per_person'] = $form['commerce_discount_fields']['discount_usage_per_person'];
   $form['commerce_discount_fields']['commerce_discount_usage']['discount_usage_limit'] = $form['commerce_discount_fields']['discount_usage_limit'];
   unset($form['commerce_discount_fields']['discount_usage_per_person'], $form['commerce_discount_fields']['discount_usage_limit']);
-  
-  // add our validation hook which will return submitted values to their expected location in the form_state
+
+  // Add our validation hook which will return submitted values to their
+  // expected location in the form_state.
   $form['#validate'][] = '_commerce_discount_usage_commerce_discount_form_validate';
 }
 
 /**
- * Form validate function that repairs the submitted form_state from our vertical tabs alterations
+ * Form validate function that repairs the submitted form_state from our
+ * vertical tabs alterations.
  */
 function _commerce_discount_usage_commerce_discount_form_validate(&$form, &$form_state) {
-  // move form values back to their original location
+  // Move form values back to their original location.
   $form_state['values']['commerce_discount_fields']['discount_usage_per_person'] = $form_state['values']['commerce_discount_fields']['commerce_discount_usage']['discount_usage_per_person'];
   $form_state['values']['commerce_discount_fields']['discount_usage_limit'] = $form_state['values']['commerce_discount_fields']['commerce_discount_usage']['discount_usage_limit'];
   unset($form_state['values']['commerce_discount_fields']['commerce_discount_usage']['discount_usage_per_person'],$form_state['values']['commerce_discount_fields']['commerce_discount_usage']['discount_usage_limit']);
-}
\ No newline at end of file
+}