libcap-2.76
Rewrite libpsx to work with native linux threads.
Make make run_b219174 dependencies work.
Improve weaver test to count zeros vs '-1' values.
Avoid thread churn deadlock with PSX rewrite.
Reset the value of errno for main()
Implement cap_launch.
Rewrite libpsx thread shutdown path to support musl.
Make sudotest more robust against untestable environments