Merge "installer: Remove redundant $key variable"

diff --combined includes/installer/Installer.php
index 98b32c0,63b251a..0bc0a83
--- 1/includes/installer/Installer.php
--- 2/includes/installer/Installer.php
+++ b/includes/installer/Installer.php
@@@ -866,8 -866,7 +866,7 @@@ abstract class Installer 
                }
  
                if ( !$caches ) {
-                       $key = 'config-no-cache-apcu';
-                       $this->showMessage( $key );
+                       $this->showMessage( 'config-no-cache-apcu' );
                }
  
                $this->setVar( '_Caches', $caches );
@@@ -1633,7 -1632,8 +1632,7 @@@
        }
  
        /**
 -       * Generate a secret value for variables using our CryptRand generator.
 -       * Produce a warning if the random source was insecure.
 +       * Generate a secret value for variables using a secure generator.
         *
         * @param array $keys
         * @return Status