Fix tests

Oops.

src/test-algs.cc

@@ -62,13 +62,13 @@ main (int argc, char **argv)
   A a;
   hb_invoke (&A::a, a);
 
-  assert (1 == hb_min (3, 8, 1, 2));
-  assert (8 == hb_max (3, 8, 1, 2));
+  assert (1 == hb_min (8, 1));
+  assert (8 == hb_max (8, 1));
 
   int x = 1, y = 2;
   hb_min (x, 3);
-  hb_min (3, x, 4);
-  hb_min (3, x, 4 + 3);
+  hb_min (3, x);
+  hb_min (x, 4 + 3);
   int &z = hb_min (x, y);
   z = 3;
   assert (x == 3);