Document TAILQ_FOREACH_REVERSE() and CIRCLEQ_FOREACH_REVERSE() macros.
Document TAILQ_FOREACH_REVERSE() and CIRCLEQ_FOREACH_REVERSE() macros.

Submitted by:	Jake Burkholder <jburkhol@home.com>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase