SoToVRMLAction(3) on Linux
The text 588c76d92bec, as Debian 8 (Jessie) shipped it.
The SoToVRMLAction class builds a new scene graph using only VRML 1.0 nodes. This action is used for converting a scene graph of VRML2/VRML97 nodes to a new scene graph using only VRML1 compatible nodes.