i18n: replace "logs" by "logs-in"

per https://www.mediawiki.org/wiki/Extension:Auth_remoteuser

Change-Id: I354f295effedf203bd2d1ece7fe6dd4113bd6fa6
Reviewed-on: https://gerrit.wikimedia.org/r/139764
Reviewed-by: Siebrand <siebrand@kitano.nl>
Tested-by: Siebrand <siebrand@kitano.nl>