Make pw_edit() use /bin/sh to interpret the EDITOR environment variable.
Make pw_edit() use /bin/sh to interpret the EDITOR environment
variable.

PR:		48748
Reviewed by:	mike (mentor)

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