added print dna path

direct/src/showbase/ShowBase.py

@@ -284,6 +284,8 @@ class ShowBase(DirectObject.DirectObject):
            print "\n\nEnvironment Debug Info {"
            print "* model path:"
            print getModelPath()
+           print "* dna path:"
+           print getDnaPath()
            print "* texture path:"
            print getTexturePath()
            print "* sound path:"