iss1757 - Fix unit test

Author: EJMFarrow

tests/parsons_block_test.php

@@ -333,7 +333,7 @@ public function test_parsons_validate_params(): void {
             $this->assertEquals(
                 $err . ', ' . stack_string(
                     'stackBlock_parsons_param',
-                    ['block' => "Parson's", param => implode(', ', $validparameters)]
+                    ['block' => "Parson's", 'param' => implode(', ', $validparameters)]
                 ),
                 $at1->get_errors()
             );