Describe the bug
Warnings generated when building user's guide

To Reproduce
I did standard setup, and make SIMULATION=native prep but likely exists for any config.
Then make usersguide, observe warnings in build/doc/warnings.log:

/export/home/jhageman/cFS/cFS-GitHub/osal/src/os/inc/osapi-bsp.h:95: warning: end of file while inside a group
/export/home/jhageman/cFS/cFS-GitHub/osal/src/os/inc/osapi-idmap.h:274: warning: end of file while inside a group

Expected behavior
No warnings.
Also the new GitHub actions should have caught this. @astrogeco

Note the warnings file at https://github.com/nasa/cFS/suites/1693812098/artifacts/31817568 is not empty... not clear why this didn't trigger a failure.

Code snips
None yet.

System observed on:

• Hardware: cFS Dev Server
• OS: Ubuntu 18.04
• Versions: Bundle main

Additional context
N/A

Reporter Info
Jacob Hageman - NASA/GSFC