Back out valid argument domain change - sneak to this function by error. Reword test condition better. Previous variant was true for negative characters too.
Back out valid argument domain change - sneak to this function by error.
Reword test condition better. Previous variant was true for negative
characters too.

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