lint: fix hanging indentation
lint: fix anomalous backslash in string warnings
test: drop unused protect_process2

This appears to be broken, and nothing is referencing it, so just
drop it and be done.  The "functor" isn't defined in the scope it
is used.
lint: tweak demandload usage

The linter supports direct calls to demandload, but not indirect, so
import it directly like other modules.
lint: disable a few more local warnings