aea7646d79
Currently truss(1) shows shm_open(SHM_ANON, ...) as shm_open("(null)", ...). Detect the special value and display it by name. Reviewed by: jhb, allanjude, tuexen Approved by: mjg (mentor) MFC with: r339224 Differential Revision: https://reviews.freebsd.org/D17461