Make execl() vfork()-safe. This should fix potential bugs in rcp, telnet and tip, and probably a few other apps.
Make execl() vfork()-safe. This should fix potential bugs in rcp,
telnet and tip, and probably a few other apps.

Reviewed by:	bde
Approved by:	jkh

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