Fixup the c-inclusion params a bit.
Fixup the c-inclusion params a bit.

The overly greedy blue-comment star matcher would make all C and C++
code in doxygen look good, but it messes with non-doxygen block comments.
By changing to this `containedin` blocking, we pickup the trailing
`)` and `}` characters that seem to be skipped if just doing the
ticked-region contained requirement.

adamlsd/cshenv