Ticket #20569: shogun.diff

Portfile

@@ -103 +103 @@
 #variant matlab description {Build the Matlab API} {}
 variant doc description {Install the documentation for shogun} {
   depends_build-append port:texlive \
-                       port:graphviz \
+                       path:bin/dot:graphviz \
                        port:doxygen
 }