MC-19114: Authorize.net "Qty to Refund" not editable

Author: dyushkin

app/code/Magento/AuthorizenetAcceptjs/Gateway/Command/RefundTransactionStrategyCommand.php

@@ -90,7 +90,9 @@ private function canVoid(array $details, array $commandSubject) :bool
     {
         if ($details['transaction']['transactionStatus'] === 'capturedPendingSettlement') {
             if ((float) $details['transaction']['authAmount'] !== (float) $commandSubject['amount']) {
-                throw new CommandException(__('Transaction has not been settled yet, partial void is not available.'));
+                throw new CommandException(
+                    __('The transaction has not been settled, a partial refund is not yet available.')
+                );
             }
 
             return true;

app/code/Magento/AuthorizenetAcceptjs/Test/Unit/Gateway/Command/RefundTransactionStrategyCommandTest.php

@@ -100,7 +100,7 @@ public function testCommandWillVoidWhenTransactionIsPendingSettlement()
 
     /**
      * @expectedException \Magento\Payment\Gateway\Command\CommandException
-     * @expectedExceptionMessage Transaction has not been settled yet, partial void is not available.
+     * @expectedExceptionMessage The transaction has not been settled, a partial refund is not yet available.
      */
     public function testCommandWillThrowExceptionWhenVoidTransactionIsPartial()
     {

app/code/Magento/AuthorizenetAcceptjs/i18n/en_US.csv

@@ -19,4 +19,4 @@ Authorize.net,Authorize.net
 "ccLast4","Last 4 Digits of Card"
 "There was an error while trying to process the refund.","There was an error while trying to process the refund."
 "This transaction cannot be refunded with its current status.","This transaction cannot be refunded with its current status."
-"Transaction has not been settled yet, partial void is not available.","Transaction has not been settled yet, partial void is not available."
+"The transaction has not been settled, a partial refund is not yet available.","The transaction has not been settled, a partial refund is not yet available."