Help pages, wrong placeholder for links

When accesing the help pages of the module few errors are displayed,

    User error: Invalid placeholder (!field) in string: Color Field is simple field that use a hexadecimal notation (HEX) for the combination of Red, Green, and Blue color values (RGB). See the Field module help and the Field UI help pages for general information on fields and how to create and manage them. For more information, see the online documentation for the Link module. in Drupal\Component\Render\FormattableMarkup::placeholderFormat() (line 241 of core/lib/Drupal/Component/Render/FormattableMarkup.php).
    User error: Invalid placeholder (!field_ui) in string: Color Field is simple field that use a hexadecimal notation (HEX) for the combination of Red, Green, and Blue color values (RGB). See the Field module help and the Field UI help pages for general information on fields and how to create and manage them. For more information, see the online documentation for the Link module. in Drupal\Component\Render\FormattableMarkup::placeholderFormat() (line 241 of core/lib/Drupal/Component/Render/FormattableMarkup.php).
    User error: Invalid placeholder (!link_documentation) in string: Color Field is simple field that use a hexadecimal notation (HEX) for the combination of Red, Green, and Blue color values (RGB). See the Field module help and the Field UI help pages for general information on fields and how to create and manage them. For more information, see the online documentation for the Link module. in Drupal\Component\Render\FormattableMarkup::placeholderFormat() (line 241 of core/lib/Drupal/Component/Render/FormattableMarkup.php).
    User error: Invalid placeholder (!field_ui) in string: The settings and the display of the link field can be configured separately. See the Field UI help for more information on how to manage fields and their display. in Drupal\Component\Render\FormattableMarkup::placeholderFormat() (line 241 of core/lib/Drupal/Component/Render/FormattableMarkup.php).

The !var placeholder is being used while it's deprecated on t() function : https://www.drupal.org/node/2575819