Add an -n option to write the trailing nul byte to the extattr when using setextattr(8) to write a string.
Add an -n option to write the trailing nul byte to the extattr when
using setextattr(8) to write a string.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories

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