Round values when determining netgraph output

Changelog.md

@@ -6,6 +6,9 @@ Minor refactoring of how the netgraph string is handled.
 
 Refactoring of handling of Option types wrapping primitive values.
 
+Round values when determining netgraph results instead of truncating to an
+integer.
+
 ## 0.1.5
 
 Implemented `--netdev_width=<width>` which sets the minimum width of the netdev

src/proc.rs

@@ -143,7 +143,7 @@ impl NetInfo {
             let graph_value: u8 = if diff_max > graph_max {
                 8
             } else {
-                (diff_max / graph_max * 8.0f64) as u8
+                (diff_max / graph_max * 8.0f64).round() as u8
             };
 
             self.graph.remove(0);