Fix "unexpected operator" error when passed multi-word first-argument containing whitespace. Also make other changes to support multi-word arguments.
Fix "unexpected operator" error when passed multi-word first-argument
containing whitespace. Also make other changes to support multi-word
arguments.

PR:		bin/170759
Submitted by:	dteske
Reviewed by:	emaste (mentor)
Approved by:	emaste (mentor)
MFC after:	3 days

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