* \param zfail action to take when stencil test passes, but the depth test fails.
* \param zpass action to take when stencil test passes and the depth test
* passes (or depth testing is not enabled).
- *
+ *
* \sa glStencilOp().
- *
+ *
* Verifies the parameters and updates the respective fields in
* __GLcontextRec::Stencil. On change flushes the vertices and notifies the
* driver via the dd_function_table::StencilOp callback.