Work around problem with nested /* in Doxygen comment

...where Doxygen apparently deliberately tracks nested /* ... */ comments in
/** ... */ comments (even though languages like C, C++, Java don't).  Thanks to
Lionel for finding it.

Change-Id: I0cfc54216df4e49c194c097e5ad3b00f5270d395
(cherry picked from commit 9947032c4c6a772df888323338df699f54087013)