isomorphism.cpp:

  - Output the failed graph when an error occurs.


[SVN r11812]

libs/graph

@@ -1 +1 @@
-Subproject commit 0be35628444424f5c024d446ecead74269864abd
+Subproject commit f576c1828d5b2dda7b31be5b59e2b57566b5689b