Issue #3478132 by pere orga, smustgrave, cilefen: Fix case in comment (OPcache)

core/install.php

@@ -37,7 +37,7 @@
 // Initialize the autoloader.
 $class_loader = require_once $root_path . '/autoload.php';
 
-// If OPCache is in use, ensure opcache.save_comments is enabled.
+// If OPcache is in use, ensure opcache.save_comments is enabled.
 if (OpCodeCache::isEnabled() && !ini_get('opcache.save_comments')) {
   print 'Systems with OPcache installed must have <a href="http://php.net/manual/opcache.configuration.php#ini.opcache.save-comments">opcache.save_comments</a> enabled.';
   exit();

core/lib/Drupal/Component/Utility/OpCodeCache.php

@@ -13,7 +13,7 @@ class OpCodeCache {
    * Checks if OpCodeCache is enabled.
    *
    * @return bool
-   *   TRUE if opcache is enabled, FALSE otherwise.
+   *   TRUE if OPcache is enabled, FALSE otherwise.
    */
   public static function isEnabled() {
     return extension_loaded('Zend OPcache') && ini_get('opcache.enable');

core/lib/Drupal/Core/DrupalKernel.php

@@ -1026,7 +1026,7 @@ public static function bootEnvironment($app_root = NULL) {
         ini_set('log_errors', 1);
         ini_set('error_log', $app_root . '/' . $test_db->getTestSitePath() . '/error.log');
 
-        // Ensure that a rewritten settings.php is used if opcache is on.
+        // Ensure that a rewritten settings.php is used if OPcache is on.
         ini_set('opcache.validate_timestamps', 'on');
         ini_set('opcache.revalidate_freq', 0);
       }