Update phpdocs

Author: barryvdh

app/code/Magento/Email/Model/Config/Source/SmtpAuthType.php

@@ -8,12 +8,12 @@
 namespace Magento\Email\Model\Config\Source;
 
 /**
- * Option provider for custom media URL type
+ * Option provider for the SMTP Auth type
  */
 class SmtpAuthType implements \Magento\Framework\Data\OptionSourceInterface
 {
     /**
-     * The the possible Auth types
+     * The possible Auth types
      *
      * @codeCoverageIgnore
      * @return array

app/code/Magento/Email/Model/Config/Source/SmtpSslType.php

@@ -8,12 +8,12 @@
 namespace Magento\Email\Model\Config\Source;
 
 /**
- * Option provider for custom media URL type
+ * Option provider for SMTP SSL Type
  */
 class SmtpSslType implements \Magento\Framework\Data\OptionSourceInterface
 {
     /**
-     * The the possible Auth types
+     * The possible SSL types
      *
      * @codeCoverageIgnore
      * @return array

app/code/Magento/Email/Model/Config/Source/SmtpTransportType.php

@@ -8,13 +8,13 @@
 namespace Magento\Email\Model\Config\Source;
 
 /**
- * Option provider for custom media URL type
+ * Option provider for the SMTP Transport Type
  */
 class SmtpTransportType implements \Magento\Framework\Data\OptionSourceInterface
 {
 
     /**
-     * The the possible Auth types
+     * The possible Transport types
      *
      * @codeCoverageIgnore
      * @return array