dotgen make_flat_bottom_edges: use a clearer type for 'use_splines'

diff --git a/lib/dotgen/dotsplines.c b/lib/dotgen/dotsplines.c
index 8f8ebc18a8c540ea611380208e5a988f76dee1bc..15c19475537641d065c8c253831a5a2b302f51f5 100644 (file)
--- a/lib/dotgen/dotsplines.c
+++ b/lib/dotgen/dotsplines.c
@@ -1477,7 +1477,7 @@ make_flat_labeled_edge(graph_t* g, spline_info_t* sp, path* P, edge_t* e, int et
  */
 static void
 make_flat_bottom_edges(graph_t* g, spline_info_t* sp, path * P, edge_t ** edges, int 
-       ind, int cnt, edge_t* e, int use_splines)
+       ind, int cnt, edge_t* e, bool use_splines)
 {
     node_t *tn, *hn;
     int j, i, r;