new documentation build warning

[pabigot]

From #28779 which included a closing @} in the header without any opening one. Probably some of the macros in this are supposed to be in user documentation

 ---- New errors/warnings not tracked as .known-issues/, please fix them ----

/mnt/nordic/zp/zephyr/include/sys/util_macro.h:577: warning: unbalanced grouping commands

[utzig]

@pabigot What is your Doxygen version?

[pabigot]

What is your Doxygen version?

Locally built, doxygen-Release_1_8_19-5-g8e87f6bb4 which is a little past 1.8.19.

[pabigot]

Regardless, the file needs to be fixed to have balanced group commands.

[utzig]

Regardless, the file needs to be fixed to have balanced group commands.

I have not considered not fixing the file. I just found it weird that 1.8.13 ignores the problem. I will check if we can just move on to something a bit newer...