I ran into the below error while running dist/s_docs, a step to cut the 11.2.0 release. This error only appears in my Ubuntu 20.04 development environment. The same command runs fine in Evergreen builds (the "s-all" task running on the ubuntu2004-small distro). 

lchen@nimer:~/work/wiredtiger-release2/dist$ ./s_docs -l
89d88
< time window
90a90
> time window
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
arch-glossary.dox entries out of order
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
lchen@nimer:~/work/wiredtiger-release2/dist$ ./s_docs
89d88
< time window
90a90
> time window
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
arch-glossary.dox entries out of order
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= 

Both my development environment and Evergreen distro have the same OS version (Ubuntu 20.04), "sort" version (8.30), and "doxygen" version (1.8.17). It turns out the locale settings are different ("en_US.UTF8" vs "C"), which led to the varied experiences. 

We should consider specifying a given locale setting in dist/s_docs to ensure a consistent experience for users.