While the misfontification isn't a regression -- the support for cgroups
(but only for cgroup v1) in etc-fstab-generic-mode was added in January
2021 (commit 80d964ec8b) -- the fix could go into emacs-29, since cgroup
v2 became official in the Linux kernel in March 2016 (kernel 4.5); i.e.,
omitting cgroup2 was presumably an oversight in that commit.


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.18.0) of 2024-01-09 built on strobelfs2
Repository revision: fccaeabc959f5403ce49744030bd2620352b59f8
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101009
System Description: Linux From Scratch r12.0-112