Make attempting to change --config in invocation policy an error.

It will not work as expected, since config is already expanded by this point in options processing.

RELNOTES: None.
PiperOrigin-RevId: 193196664
GitOrigin-RevId: 9c8c77502ff52907a327e6bdc9ac282da0af6b44
Change-Id: I5fa3aaec852b2d16bb8974291735ba4da1709243
1 file changed
tree: 5ddda0a644ee5e92567fc728332b253719c8d8e1
  1. java/
  2. test/