Style fix; reduced redundancy.

module/VuFind/src/VuFind/Controller/AbstractRecord.php

@@ -365,14 +365,15 @@ class AbstractRecord extends AbstractBase
         if ($this->formWasSubmitted('submit', $view->useRecaptcha)) {
             // Attempt to send the email and show an appropriate flash message:
             try {
-                $this->getServiceLocator()->get('VuFind\Mailer')->sendRecord(
+                $mailer = $this->getServiceLocator()->get('VuFind\Mailer');
+                $mailer->sendRecord(
                     $view->to, $view->from, $view->message, $driver,
                     $this->getViewRenderer()
                 );
                 if ($this->params()->fromPost('ccself')
                     && $view->from != $view->to
                 ) {
-                    $this->getServiceLocator()->get('VuFind\Mailer')->sendRecord(
+                    $mailer->sendRecord(
                         $view->from, $view->from, $view->message, $driver,
                         $this->getViewRenderer()
                     );

module/VuFind/src/VuFind/Controller/AjaxController.php

@@ -1032,14 +1032,15 @@ class AjaxController extends AbstractBase
                 $this->params()->fromPost('source', 'VuFind')
             );
             $view = $this->createEmailViewModel();
-            $this->getServiceLocator()->get('VuFind\Mailer')->sendRecord(
+            $mailer = $this->getServiceLocator()->get('VuFind\Mailer');
+            $mailer->sendRecord(
                 $view->to, $view->from, $view->message, $record,
                 $this->getViewRenderer()
             );
             if ($this->params()->fromPost('ccself')
                 && $view->from != $view->to
             ) {
-                $this->getServiceLocator()->get('VuFind\Mailer')->sendRecord(
+                $mailer->sendRecord(
                     $view->from, $view->from, $view->message, $record,
                     $this->getViewRenderer()
                 );

module/VuFind/src/VuFind/Controller/CartController.php

@@ -216,14 +216,15 @@ class CartController extends AbstractBase
             // Attempt to send the email and show an appropriate flash message:
             try {
                 // If we got this far, we're ready to send the email:
-                $this->getServiceLocator()->get('VuFind\Mailer')->sendLink(
+                $mailer = $this->getServiceLocator()->get('VuFind\Mailer');
+                $mailer->sendLink(
                     $view->to, $view->from, $view->message,
                     $url, $this->getViewRenderer(), 'bulk_email_title'
                 );
                 if ($this->params()->fromPost('ccself')
                     && $view->from != $view->to
                 ) {
-                    $this->getServiceLocator()->get('VuFind\Mailer')->sendLink(
+                    $mailer->sendLink(
                         $view->from, $view->from, $view->message,
                         $url, $this->getViewRenderer(), 'bulk_email_title'
                     );

module/VuFind/src/VuFind/Controller/SearchController.php

@@ -113,16 +113,17 @@ class SearchController extends AbstractSearch
             // Attempt to send the email and show an appropriate flash message:
             try {
                 // If we got this far, we're ready to send the email:
-                $this->getServiceLocator()->get('VuFind\Mailer')->sendLink(
+                $mailer = $this->getServiceLocator()->get('VuFind\Mailer');
+                $mailer->sendLink(
                     $view->to, $view->from, $view->message,
                     $view->url, $this->getViewRenderer()
                 );
                 if ($this->params()->fromPost('ccself')
                     && $view->from != $view->to
                 ) {
-                    $this->getServiceLocator()->get('VuFind\Mailer')->sendLink(
-                    $view->from, $view->from, $view->message,
-                    $view->url, $this->getViewRenderer()
+                    $mailer->sendLink(
+                        $view->from, $view->from, $view->message,
+                        $view->url, $this->getViewRenderer()
                     );
                 }
                 $this->flashMessenger()->setNamespace('info')