Update some argument names

Author: javiereguiluz

testing.rst

@@ -973,26 +973,26 @@ Mailer Assertions
 Notifier Assertions
 ...................
 
-``assertNotificationCount(int $count, string $transport = null, string $message = '')``
+``assertNotificationCount(int $count, string $transportName = null, string $message = '')``
     Asserts that the given number of notifications has been created
     (in total or for the given transport).
-``assertQueuedNotificationCount(int $count, string $transport = null, string $message = '')``
+``assertQueuedNotificationCount(int $count, string $transportName = null, string $message = '')``
     Asserts that the given number of notifications are queued
     (in total or for the given transport).
 ``assertNotificationIsQueued(MessageEvent $event, string $message = '')``
     Asserts that the given notification is queued.
 ``assertNotificationIsNotQueued(MessageEvent $event, string $message = '')``
     Asserts that the given notification is not queued.
-``assertNotificationSubjectContains(MessageInterface $messageObject, string $text, string $message = '')``
+``assertNotificationSubjectContains(MessageInterface $notification, string $text, string $message = '')``
     Asserts that the given text is included in the subject of
     the given notification.
-``assertNotificationSubjectNotContains(MessageInterface $messageObject, string $text, string $message = '')``
+``assertNotificationSubjectNotContains(MessageInterface $notification, string $text, string $message = '')``
     Asserts that the given text is not included in the subject of
     the given notification.
-``assertNotificationTransportIsEqual(MessageInterface $messageObject, string $text, string $message = '')``
+``assertNotificationTransportIsEqual(MessageInterface $notification, string $transportName, string $message = '')``
     Asserts that the name of the transport for the given notification
     is the same as the given text.
-``assertNotificationTransportIsNotEqual(MessageInterface $messageObject, string $text, string $message = '')``
+``assertNotificationTransportIsNotEqual(MessageInterface $notification, string $transportName, string $message = '')``
     Asserts that the name of the transport for the given notification
     is not the same as the given text.