minor #49239 Fix some typos (javiereguiluz)

This PR was merged into the 5.4 branch.

Discussion
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Fix some typos

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

bb62f1718a Fix some typos

Author: nicolas-grekas

HeaderUtils.php

@@ -138,7 +138,7 @@ public static function quote(string $s): string
      * Decodes a quoted string.
      *
      * If passed an unquoted string that matches the "token" construct (as
-     * defined in the HTTP specification), it is passed through verbatimly.
+     * defined in the HTTP specification), it is passed through verbatim.
      */
     public static function unquote(string $s): string
     {