get_wp_title_rss() WordPress Function

function get_wp_title_rss( $deprecated = '&#8211;' ) {
	if ( '&#8211;' !== $deprecated ) {
		/* translators: %s: 'document_title_separator' filter name. */
		_deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), '<code>document_title_separator</code>' ) );
	}

	/**
	 * Filters the blog title for use as the feed title.
	 *
	 * @since 2.2.0
	 * @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`.
	 *
	 * @param string $title      The current blog title.
	 * @param string $deprecated Unused.
	 */
	return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated );
}
Uses	Description
wp-includes/general-template.php:wp_get_document_title()	Returns document title for the current page.
wp-includes/l10n.php:__()	Retrieve the translation of $text.
wp-includes/functions.php:_deprecated_argument()	Mark a function argument as deprecated and inform when it has been used.
wp-includes/plugin.php:apply_filters()	Calls the callback functions that have been added to a filter hook.
wp-includes/feed.php:get_wp_title_rss	Filters the blog title for use as the feed title.
Used By	Description
wp-includes/feed.php:rss2_site_icon()	Displays Site Icon in RSS2.
wp-includes/feed.php:wp_title_rss()	Display the blog title for display of the feed title.
Version	Description
4.4.0	The optional `$sep` parameter was deprecated and renamed to `$deprecated`.
2.2.0	Introduced.