oetiker/rrdtool-1.x — pull request #442 by pabigot (2014-02-17 23:34:05+00:00)
Title: rrd_graph: initialize new data member (fix #441)

It'd be worth considering adding a `memset(im, 0, sizeof(*im))` at the top of this function to prevent this from happening again. Doing that would also eliminate the need for all those explicit member initialize-to-zero assignments.