minor symfony#16228 [HttpFoundation] Fix some typo in the Request doc (alOneh)

This PR was merged into the 2.3 branch.

Discussion
----------

[HttpFoundation] Fix some typo in the Request doc

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

481fc12 [HttpFoundation] Fix some typo in the Request doc

Author: fabpot

src/Symfony/Component/HttpFoundation/Request.php

@@ -1067,7 +1067,7 @@ public function getQueryString()
     /**
      * Checks whether the request is secure or not.
      *
-     * This method can read the client port from the "X-Forwarded-Proto" header
+     * This method can read the client protocol from the "X-Forwarded-Proto" header
      * when trusted proxies were set via "setTrustedProxies()".
      *
      * The "X-Forwarded-Proto" header must contain the protocol: "https" or "http".
@@ -1092,7 +1092,7 @@ public function isSecure()
     /**
      * Returns the host name.
      *
-     * This method can read the client port from the "X-Forwarded-Host" header
+     * This method can read the client host name from the "X-Forwarded-Host" header
      * when trusted proxies were set via "setTrustedProxies()".
      *
      * The "X-Forwarded-Host" header must contain the client host name.