The wpmem_reg_link_str filter hook allows you to change the text (and if desired, the link) of the forgot password link that shows in the main body login form.
Similar to wpmem_forgot_link_str for the register page link.
(string) (required) The HTML of the register page string, includes the link and link text.
(string) (optional) The actual link (useful for making new text without having to extract the link).
Introduced in version 2.9.0
Added $link parameter in 3.0.9
wpmem_reg_link_str is located in forms.php