Fix "acccess" spelling error

Summary: This is misspelled.

Test Plan: Consulted a dictionary.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15827

Author: epriestley

src/aphront/AphrontRequest.php

@@ -484,7 +484,7 @@ private function setCookieWithExpiration(
         pht(
           'This Phabricator install is configured as "%s", but you are '.
           'using the domain name "%s" to access a page which is trying to '.
-          'set a cookie. Acccess Phabricator on the configured primary '.
+          'set a cookie. Access Phabricator on the configured primary '.
           'domain or a configured alternate domain. Phabricator will not '.
           'set cookies on other domains for security reasons.',
           $configured_as,