WordPress at a glance
filter is not described

login_link_separator filter-hook . WP 4.9.0

Filters the separator used between login form navigation links.

Usage

add_filter( 'login_link_separator', 'filter_function_name_2868' );
function filter_function_name_2868( $login_link_separator ){
	// filter...

	return $login_link_separator;
}
$login_link_separator(string)
The separator used between login form navigation links.

Where the hook is called

In file: /wp-login.php
login_link_separator
wp-login.php 468
$login_link_separator = apply_filters( 'login_link_separator', ' | ' );

Where the hook is used (in WP core)

Does not used.