Do not pass user-defined environmental variables to /usr/bin/login.
Do not pass user-defined environmental variables to /usr/bin/login.

Obtained from:	OpenBSD
Approved by:	green

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