Control statements based on the if and elseif constructs must have a single space before the opening parenthesis of the conditional and a single space after the closing parenthesis.

framework/yii/gii/views/default/view.php

@@ -37,12 +37,12 @@ foreach ($generator->templates as $name => $path) {
 				<?= $this->renderFile($generator->formView(), [
 					'generator' => $generator,
 					'form' => $form,
-				]); ?>
+				]) ?>
 				<?= $form->field($generator, 'template')->sticky()
 					->label('Code Template')
 					->dropDownList($templates)->hint('
 						Please select which set of the templates should be used to generated the code.
-				'); ?>
+				') ?>
 				<div class="form-group">
 					<?= Html::submitButton('Preview', ['name' => 'preview', 'class' => 'btn btn-primary']) ?>