fix for rootp from Willem Rein Oudshoorn (thank you)
authorGary King <gwking@franz.com>
Tue, 22 Mar 2011 15:46:32 +0000 (11:46 -0400)
committerGary King <gwking@franz.com>
Tue, 22 Mar 2011 15:46:32 +0000 (11:46 -0400)
commitdacf832a9595116c4a3384232d785311cd1ec811
treef2b4b7b388e35e8a16e87537e2a5fc599f1272c7
parent3165cba36e6f8c3a7f3f1051f1c4880aaa14466d
fix for rootp from Willem Rein Oudshoorn (thank you)

Note that this changes the behavior of `rootp`. If you rely on the
old (broken) behavior, then this patch will break your code. Sorry.
dev/graph.lisp
unit-tests/test-graph.lisp