The published description for exit 65. Three codes map to it, so the string
is authored to name all three rather than left to whichever ERROR_CONTRACT
entry exit_code_map happens to insert last (r48). Every 65 entry carries
it, so the map cannot drift with the table’s order.
The refusal text, shared by the error envelope and doctor’s
unsupported_version finding so the two cannot drift. It names the offending
line and what was found there, never the path.