Don't open the tz file if we're running setuid or setgid to prevent infomration leakage.
Don't open the tz file if we're running setuid or setgid to prevent infomration
leakage.

Submitted by:	Julian Assange

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