linux_futex errata advisory link incorrect in release errata pages

From: Laurence Parry <>
Date: Fri, 16 Jul 2021 22:37:06 UTC
Dear Documentation Project team,

The advisory link used for linux_futex in errata notes:
is missing a period at the end. It should be:

Impacted pages include at least:
but not

Best regards,
Laurence "GreenReaper" Parry - - -