bug #29885 Update MimeType extensions (fabpot)

This PR was merged into the 3.4 branch.

Discussion
----------

Update MimeType extensions

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

<!--
Write a short README entry for your feature/bugfix here (replace this comment block.)
This will help people understand your PR and can be used as a start of the Doc PR.
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 - Bug fixes must be submitted against the lowest branch where they apply
   (lowest branches are regularly merged to upper ones so they get the fixes too).
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Commits
-------

5183049 updated MimeType extensions

src/Symfony/Component/HttpFoundation/File/MimeType/MimeTypeExtensionGuesser.php

@@ -20,11 +20,11 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
      * A map of mime types and their default extensions.
      *
      * This list has been placed under the public domain by the Apache HTTPD project.
-     * This list has been updated from upstream on 2013-04-23.
+     * This list has been updated from upstream on 2019-01-14.
      *
-     * @see http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
+     * @see https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
      */
-    protected $defaultExtensions = array(
+    protected $defaultExtensions = [
         'application/andrew-inset' => 'ez',
         'application/applixware' => 'aw',
         'application/atom+xml' => 'atom',
@@ -618,7 +618,7 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'audio/adpcm' => 'adp',
         'audio/basic' => 'au',
         'audio/midi' => 'mid',
-        'audio/mp4' => 'mp4a',
+        'audio/mp4' => 'm4a',
         'audio/mpeg' => 'mpga',
         'audio/ogg' => 'oga',
         'audio/s3m' => 's3m',
@@ -653,6 +653,11 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'chemical/x-cml' => 'cml',
         'chemical/x-csml' => 'csml',
         'chemical/x-xyz' => 'xyz',
+        'font/collection' => 'ttc',
+        'font/otf' => 'otf',
+        'font/ttf' => 'ttf',
+        'font/woff' => 'woff',
+        'font/woff2' => 'woff2',
         'image/bmp' => 'bmp',
         'image/x-ms-bmp' => 'bmp',
         'image/cgm' => 'cgm',
@@ -669,8 +674,8 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'image/tiff' => 'tiff',
         'image/vnd.adobe.photoshop' => 'psd',
         'image/vnd.dece.graphic' => 'uvi',
-        'image/vnd.dvb.subtitle' => 'sub',
         'image/vnd.djvu' => 'djvu',
+        'image/vnd.dvb.subtitle' => 'sub',
         'image/vnd.dwg' => 'dwg',
         'image/vnd.dxf' => 'dxf',
         'image/vnd.fastbidsheet' => 'fbs',
@@ -732,8 +737,8 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'text/vcard' => 'vcard',
         'text/vnd.curl' => 'curl',
         'text/vnd.curl.dcurl' => 'dcurl',
-        'text/vnd.curl.scurl' => 'scurl',
         'text/vnd.curl.mcurl' => 'mcurl',
+        'text/vnd.curl.scurl' => 'scurl',
         'text/vnd.dvb.subtitle' => 'sub',
         'text/vnd.fly' => 'fly',
         'text/vnd.fmi.flexstor' => 'flx',
@@ -747,10 +752,10 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'text/x-asm' => 's',
         'text/x-c' => 'c',
         'text/x-fortran' => 'f',
-        'text/x-pascal' => 'p',
         'text/x-java-source' => 'java',
-        'text/x-opml' => 'opml',
         'text/x-nfo' => 'nfo',
+        'text/x-opml' => 'opml',
+        'text/x-pascal' => 'p',
         'text/x-setext' => 'etx',
         'text/x-sfv' => 'sfv',
         'text/x-uuencode' => 'uu',
@@ -796,7 +801,7 @@ class MimeTypeExtensionGuesser implements ExtensionGuesserInterface
         'video/x-sgi-movie' => 'movie',
         'video/x-smv' => 'smv',
         'x-conference/x-cooltalk' => 'ice',
-    );
+    ];
 
     /**
      * {@inheritdoc}