Don't strip grep -v "0820-psi-dirty-check patch.
In really Psi+ patches have no such.
There is 0520-psi-dirty-check patch.
I tried to strip it but in this case applying 9000 patch
will be failed. Also never know how many builds for Mac were with
psi-dirty-check patch. So I think psi-dirty-check patch doesn't
broke everthing on Mac OS and can be saved.