Add interceptors for the NetBSD style of vis(3) present inside libc:
- vis
- nvis
- strvis
- stravis
- strnvis
- strvisx
- strnvisx
- strenvisx
- svis
- snvis
- strsvis
- strsnvis
- strsvisx
- strsnvisx
- strsenvisx
- unvis
- strunvis
- strnunvis
- strunvisx
- strnunvisx
Add a dedicated test verifying the installed interceptors.
Based on original work by Yang Zheng.
Min()