Hi Mark!

> For glib, IIRC, we updated package to latest version and guix lint 
> didn't show any more CVEs. Also, I think the change was added as part of 
> the cosmetic change commit, to cleanly apply succeeding patches.
> 
> For cairo, let me get back to you.

Okay, I was able to retrace. When Leo and I were working outside 
savannah, there was master --> core-updates merge. Leo made these 
changes when he committed to his repo 
(https://logs.guix.gnu.org/guix/2021-03-26.log#000811), from which I 
pulled then format-patched and sent it to guix-patches 
(https://issues.guix.gnu.org/42958#64). From guix-patches it was then 
pushed to core-updates (https://issues.guix.gnu.org/42958#67), from 
where I cherry-picked into wip-gnome.

It seems Leo made these for ungrafting. I not familiar with ungrafting, 
so I have to let Leo explain.

P.S
The commit title for these commits were initially "Ungraft and make some 
cosmetic changes.", I must have screwed up the tile while moving the 
patches. For that my apologies.

[1] 
https://git.sr.ht/~lle-bout/guix/commit/6477daa338fbf1c9edacfc3690aca77cacfe0008
[2] 
https://git.sr.ht/~lle-bout/guix/commit/a045a48dd961f0c5c3d536dcc3fd21d9c08d2d50

Regards,
RG.