ENGCOM-6963: fixed confusing grammar in the backend formatDate() function #25161

 - Merge Pull Request #25161 from princefishthrower/magento2-1:2.3-develop
 - Merged commits:
   1. 2201755
   2. c81605e
   3. 44e1d53
   4. bf70f1b
   5. 2f8e42b

Author: magento-engcom-team

app/code/Magento/Eav/Model/Entity/Attribute/Backend/Datetime.php

@@ -7,6 +7,8 @@
 namespace Magento\Eav\Model\Entity\Attribute\Backend;
 
 /**
+ * Prepare date for save in DB
+ *
  * @api
  * @since 100.0.2
  */
@@ -61,8 +63,8 @@ public function beforeSave($object)
     /**
      * Prepare date for save in DB
      *
-     * string format used from input fields (all date input fields need apply locale settings)
-     * int value can be declared in code (this meen whot we use valid date)
+     * String format is used in input fields (all date input fields need apply locale settings)
+     * int (Unix) format can be used in other parts of the code
      *
      * @param string|int|\DateTimeInterface $date
      * @return string
@@ -72,7 +74,7 @@ public function formatDate($date)
         if (empty($date)) {
             return null;
         }
-        // unix timestamp given - simply instantiate date object
+        // Unix timestamp given - simply instantiate date object
         if (is_scalar($date) && preg_match('/^[0-9]+$/', $date)) {
             $date = (new \DateTime())->setTimestamp($date);
         } elseif (!($date instanceof \DateTimeInterface)) {