test-fileio/test-strv: Use the streq_ptr to make build-scan not worry about passing in a null to a nonnull function. test-dhcp-option: Prevent a theoretical null pointer dereference
test-fileio/test-strv: Use the streq_ptr to make build-scan not worry about passing in a null to a nonnull function. test-dhcp-option: Prevent a theoretical null pointer dereference