TOOLS-811 - make it a bit more clear about what formats can be passed to certain sdc-role flags when multiple items need to be passed.
TOOLS-811 - make it a bit more clear about what formats can be passed
to certain sdc-role flags when multiple items need to be passed.

dan-luk/node-smartdc,andyYatskov/node-smartdc,joyent/node-smartdc,13W/node-smartdc,arekinath/node-smartdc