simplify makeDotGraph with agxbprint

diff --git a/cmd/tools/mm2gv.c b/cmd/tools/mm2gv.c
index 9a05109d3abd9fe66cf5cf89e37ac541cb481a38..9ce50baff2f02869f7863c801f594a6cdcad9d70 100644 (file)
--- a/cmd/tools/mm2gv.c
+++ b/cmd/tools/mm2gv.c
@@ -259,14 +259,7 @@ static Agraph_t *makeDotGraph(SparseMatrix A, char *name, int dim,
     }
     agxbinit (&xb, BUFS, string);
     if (with_label) {
-       agxbput (&xb, name);
-       agxbput (&xb, ". ");
-       sprintf(buf, "%d", A->m);
-       agxbput (&xb, buf);
-       agxbput (&xb, " nodes, ");
-       sprintf(buf, "%d", A->nz);
-       agxbput (&xb, buf);
-       agxbput (&xb, " edges.");
+       agxbprint (&xb, "%s. %d nodes, %d edges.", name, A->m, A->nz);
        agattr(g, AGRAPH, "label", agxbuse (&xb));
     }