Fix typo on product details causing Validation error.

Fixes a typo on the aria-labeleledby attribute on the product page causing a W3C Validation error.

Author: BezV8

app/code/Magento/Catalog/view/frontend/templates/product/view/details.phtml

@@ -21,7 +21,7 @@
                     $label = $block->getChildData($alias, 'title');
                 ?>
                 <div class="data item title"
-                     aria-labeledby="tab-label-<?= /* @escapeNotVerified */ $alias ?>-title"
+                     aria-labelledby="tab-label-<?= /* @escapeNotVerified */ $alias ?>-title"
                      data-role="collapsible" id="tab-label-<?= /* @escapeNotVerified */ $alias ?>">
                     <a class="data switch"
                        tabindex="-1"