minor #2976 Typo in TemplateWrapper::getTemplateName() method name (yceruto)

This PR was merged into the 1.x branch.

Discussion
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Typo in TemplateWrapper::getTemplateName() method name

Commits
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c9a1cb02 Update TemplateWrapper.php

src/TemplateWrapper.php

@@ -138,7 +138,7 @@ final class TemplateWrapper
     /**
      * @return string
      */
-    public function getTemplatename()
+    public function getTemplateName()
     {
         return $this->template->getTemplateName();
     }