i18n: Plural does not work with two variables

[rakekniven]

contacts/lib/Controller/ImportController.php

Lines 180 to 185 in cf7cbec

	$message = $this->l10n->n(
	'Imported %n contact (skipped %d)',
	'Imported %n contacts (skipped %d)',
	count($imported),
	[$skipped],
	);

Both of these numbers can take a different plural form, so this is wrong formulation. (skipped %d) should be in a separate source string.