Merge branch '6.4' into 7.2

* 6.4:
  Fix some content with wrong RST syntax
  [Validator] avoid broken rendering of inline types in UniqueEntity

Author: javiereguiluz

reference/configuration/framework.rst

@@ -2234,7 +2234,7 @@ php_errors
 log
 ...
 
-**type**: ``boolean`` | ``int`` | ``array<int, string>`` **default**: ``true``
+**type**: ``boolean``, ``int`` or ``array<int, string>`` **default**: ``true``
 
 Use the application logger instead of the PHP logger for logging PHP errors.
 When an integer value is used, it defines a bitmask of PHP errors that will

reference/constraints/UniqueEntity.rst

@@ -277,7 +277,7 @@ each with a single field.
 ``ignoreNull``
 ~~~~~~~~~~~~~~
 
-**type**: ``boolean`` | ``string`` | ``array`` **default**: ``true``
+**type**: ``boolean``, ``string`` or ``array`` **default**: ``true``
 
 If this option is set to ``true``, then the constraint will allow multiple
 entities to have a ``null`` value for a field without failing validation.