rrdtool plugin: Correctly initialize the ->random_variation member.

This lead to huge negative values in that member, causing values to be only
written to upon exit. D'oh!

diff --git a/src/rrdtool.c b/src/rrdtool.c
index ee5d70c..ed1ced1 100644 (file)
--- a/src/rrdtool.c
+++ b/src/rrdtool.c
@@ -676,6 +676,7 @@ static int rrd_cache_insert (const char *filename,
                rc->values = NULL;
                rc->first_value = 0;
                rc->last_value = 0;
+               rc->random_variation = 0;
                rc->flags = FLAG_NONE;
                new_rc = 1;
        }