PHPMailer: Merge upstream commit (PR274).

props zodiac1978.
fixes #27946.


git-svn-id: https://develop.svn.wordpress.org/trunk@29783 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-smtp.php

@@ -409,7 +409,7 @@ class SMTP
         // RFC 2104 HMAC implementation for php.
         // Creates an md5 HMAC.
         // Eliminates the need to install mhash to compute a HMAC
-        // Hacked by Lance Rushing
+        // by Lance Rushing
 
         $b = 64; // byte length for md5
         if (strlen($key) > $b) {