refs #17803 [finc] made email hold subject configurable

module/finc/src/finc/Controller/CustomTraits/EmailHoldTrait.php

@@ -29,8 +29,8 @@
  */
 namespace finc\Controller\CustomTraits;
 
-use VuFind\Exception\Mail as MailException;
 use finc\Mailer\Mailer as Mailer;
+use VuFind\Exception\Mail as MailException;
 use Zend\Mail\Address as Address;
 
 /**
@@ -161,10 +161,12 @@ trait EmailHoldTrait
                     'Email/journalhold-plain.phtml',
                     $details
                 );
-                $subject = "Zeitschrift von " .
-                    $details['patron']['lastname'] . ", " .
-                    $details['patron']['firstname'] .
-                    " | Signatur: " . $details['callnumber'];
+                $subject = sprintf(
+                    $emailProfile->subject,
+                    $details['patron']['lastname'],
+                    $details['patron']['firstname'],
+                    $details['callnumber']
+                );
 
                 $from = $reply = (
                     isset($details['patron']['email'])