     Fix an expression parenthesization typo in a conditional.  It should not      have any operational effects other then to make the code in question      a little faster.  Also added a more involved comment.
     Fix an expression parenthesization typo in a conditional.  It should not
     have any operational effects other then to make the code in question
     a little faster.  Also added a more involved comment.

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