diff -u b/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
--- b/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -81,9 +81,9 @@
 }
 
  /**
- * Implements hook_preprocess_block() for block content
+ * Implements hook_preprocess_block() for block content.
  *
- * Disables contextual links for system breadcrumb block
+ * Disables contextual links for system breadcrumb block.
  */
 function seven_preprocess_block(&$variables) {
   if (isset($variables['title_suffix']['contextual_links'])) {