fix for SVG rotation bug, demonstrated by

digraph BadRotation { graph [ rotate = 90]; A -> B ->C ->D ->E; }
fix proposed by steve roush
https://gitlab.com/graphviz/graphviz/issues/1392

lib/common/emit.c

@@ -1416,8 +1416,10 @@ static void init_job_pagination(GVJ_t * job, graph_t *g)
     job->pageBoundingBox.UR.x = ROUND(job->canvasBox.UR.x * job->dpi.x / POINTS_PER_INCH);
     job->pageBoundingBox.UR.y = ROUND(job->canvasBox.UR.y * job->dpi.y / POINTS_PER_INCH);
     if (job->rotation) {
-	job->pageBoundingBox.LL = exch_xy(job->pageBoundingBox.LL);
-	job->pageBoundingBox.UR = exch_xy(job->pageBoundingBox.UR);
+        job->pageBoundingBox.LL = exch_xy(job->pageBoundingBox.LL);
+        job->pageBoundingBox.UR = exch_xy(job->pageBoundingBox.UR);
+        job->canvasBox.LL = exch_xyf(job->canvasBox.LL);
+        job->canvasBox.UR = exch_xyf(job->canvasBox.UR);
     }
 }