Fix algorithm origin comment

This was raised in code review for gonum/graph#34. The code was changed, but the comment was left. Now the comment points to the correct WP revision.
gonum · Feb 26, 2015 · 41c1e29 · 41c1e29
1 parent bbe6f21
commit 41c1e29
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/plotter/johnson.go b/plotter/johnson.go
@@ -124,7 +124,7 @@ func min(a, b int) int {
 // tarjan implements Tarjan's strongly connected component finding
 // algorithm. The implementation is from the pseudocode at
 //
-// http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm
+// http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm?oldid=642744644
 //
 type tarjan struct {
 	g graph