Yet another missed [] to array() conversion

Author: sidkshatriya

tests/Sabberworm/CSS/ParserTest.php

@@ -456,7 +456,7 @@ function testLineNumbersParsing() {
 
 		$aActual = array();
 		foreach ($oDoc->getContents() as $oContent) {
-			$aActual[$oContent->getLineNo()] = [get_class($oContent)];
+			$aActual[$oContent->getLineNo()] = array(get_class($oContent));
 			if ($oContent instanceof KeyFrame) {
 				foreach ($oContent->getContents() as $block) {
 					$aActual[$oContent->getLineNo()][] = $block->getLineNo();