Merge branch '5.3' into 5.4

* 5.3:
  Language codes: 'ISO 639-2 alpha-3' mentions specified to 'ISO 639-2 alpha-3 (2T)'.

Author: javiereguiluz

components/intl.rst

@@ -44,7 +44,7 @@ Language and Script Names
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The ``Languages`` class provides access to the name of all languages
-according to the `ISO 639-1 alpha-2`_ list and the `ISO 639-2 alpha-3`_ list::
+according to the `ISO 639-1 alpha-2`_ list and the `ISO 639-2 alpha-3 (2T)`_ list::
 
     use Symfony\Component\Intl\Languages;
 
@@ -388,4 +388,4 @@ Learn more
 .. _`UTC/GMT time offsets`: https://en.wikipedia.org/wiki/List_of_UTC_time_offsets
 .. _`daylight saving time (DST)`: https://en.wikipedia.org/wiki/Daylight_saving_time
 .. _`ISO 639-1 alpha-2`: https://en.wikipedia.org/wiki/ISO_639-1
-.. _`ISO 639-2 alpha-3`: https://en.wikipedia.org/wiki/ISO_639-2
+.. _`ISO 639-2 alpha-3 (2T)`: https://en.wikipedia.org/wiki/ISO_639-2

reference/forms/types/language.rst

@@ -76,7 +76,7 @@ alpha3
 
 **type**: ``boolean`` **default**: ``false``
 
-If this option is ``true``, the choice values use the `ISO 639-2 alpha-3`_
+If this option is ``true``, the choice values use the `ISO 639-2 alpha-3 (2T)`_
 three-letter codes (e.g. French = ``fra``) instead of the default
 `ISO 639-1 alpha-2`_ two-letter codes (e.g. French = ``fr``).
 
@@ -179,5 +179,5 @@ The actual default value of this option depends on other field options:
 .. include:: /reference/forms/types/options/row_attr.rst.inc
 
 .. _`ISO 639-1 alpha-2`: https://en.wikipedia.org/wiki/ISO_639-1
-.. _`ISO 639-2 alpha-3`: https://en.wikipedia.org/wiki/ISO_639-2
+.. _`ISO 639-2 alpha-3 (2T)`: https://en.wikipedia.org/wiki/ISO_639-2
 .. _`International Components for Unicode`: http://site.icu-project.org