[5.3] Fix $dirname description

[QuyTon]

Testing Instructions

Code review.

joomla-cms/libraries/src/Form/Field/TextField.php

Lines 64 to 70 in 88371b1

	/**
	* The name of the form field direction (ltr or rtl).
	*
	* @var string
	* @since 3.2
	*/
	protected $dirname;

Syntax should be name.dir but incorrectly changed in 3f4285e

[brianteeman]

I dont think this is correct. see

joomla-cms/libraries/src/Form/Field/TextField.php

Lines 197 to 199 in 88371b1

	// Set the dirname.
	$dirname = ($dirname === 'dirname' || $dirname === 'true' || $dirname === '1');
	$this->dirname = $dirname ? $this->getName($this->fieldname . '_dir') : false;