model: improve get_next_thread() comments
authorBrian Norris <banorris@uci.edu>
Sat, 16 Feb 2013 02:08:09 +0000 (18:08 -0800)
committerBrian Norris <banorris@uci.edu>
Sat, 16 Feb 2013 02:08:09 +0000 (18:08 -0800)
commit0a0177d3795ceb0eea9e0e803148df36038776a4
treed54596006fe069615a7dfb4a45653f2d4dfccae9
parent1857316e6637ac144952a274ff020629abe83807
model: improve get_next_thread() comments

It's curious that get_next_thread() needs the current ModelAction as a
parameter. It helps to clarify that this argument is somwhat "optional."
model.cc