Clarify that strnstr() will stop searching after in encounters a NUL character.  Bump document date.  Add a missing comma.
Clarify that strnstr() will stop searching after in encounters a NUL
character.  Bump document date.  Add a missing comma.

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