core/lib/Drupal/Core/Cache/CacheContexts.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/core/lib/Drupal/Core/Cache/CacheContexts.php b/core/lib/Drupal/Core/Cache/CacheContexts.php
index 665ee79..5f8202f 100644
--- a/core/lib/Drupal/Core/Cache/CacheContexts.php
+++ b/core/lib/Drupal/Core/Cache/CacheContexts.php
@@ -224,7 +224,7 @@ public static function parseTokens(array $context_tokens) {
   /**
    * Validates an array of cache context tokens.
    *
-   * Can be called before using cache tags in operations, to ensure validity.
+   * Can be called before using cache contexts in operations, to check validity.
    *
    * @param string[] $context_tokens
    *   An array of cache context tokens.
@@ -245,7 +245,7 @@ public function validateTokens(array $context_tokens = []) {
 
     foreach ($context_tokens as $context_token) {
       if (!is_string($context_token)) {
-        throw new \LogicException('Cache contexts must be strings, ' . gettype($context_token) . ' given.');
+        throw new \LogicException(sprintf('Cache contexts must be strings, %s given.', gettype($context_token)));
       }
 
       if (isset($this->validContextTokens[$context_token])) {
@@ -266,7 +266,7 @@ public function validateTokens(array $context_tokens = []) {
         $this->validContextTokens[$context_token] = TRUE;
       }
       else {
-        throw new \LogicException('"' . $context_id . '" is not a valid cache context ID.');
+        throw new \LogicException(sprintf('"%s" is not a valid cache context ID.', $context_id));
       }
     }
   }