Note in manpage how extraneous output in initialization scripts can cause rdist to fail.
Note in manpage how extraneous output in initialization scripts
can cause rdist to fail.

PR:		bin/4954
Reviewed by:	wollman
Submitted by:	jhs

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