of src/sys/kern/kern_module.c), the default was "off" for all kernels
including rump kernels. While many (most?) kernel config files were
updated to include the new option, rump kernels weren't so lucky. Thus,
rump kernels still had autoload disabled.
This commit uses rump_sysctl to change the module_autoload_on value to
true (ie, enabled) before trying to test if autoloading actually works.
For now, I am _not_ changing the default for all rump kernels. I'll
leave that for another day, after all appropriate discussion has occurred.
738ca054ba