12745 man page typos

*** 274,285 ****
             PR_PTRACE  process has its ptrace-compatibility mode set (see
                        PCSET).
  
       pr_nlwp is the total number of active lwps in the process.  pr_nzomb is
       the total number of zombie lwps in the process.  A zombie lwp is a non-
!      detached lwp that has terminated but has not been reaped with thr_join(3)
!      or pthread_join(3C).
  
       pr_pid, pr_ppi, pr_pgid, and pr_sid are, respectively, the process ID,
       the ID of the process's parent, the process's process group ID, and the
       process's session ID.
  
--- 274,285 ----
             PR_PTRACE  process has its ptrace-compatibility mode set (see
                        PCSET).
  
       pr_nlwp is the total number of active lwps in the process.  pr_nzomb is
       the total number of zombie lwps in the process.  A zombie lwp is a non-
!      detached lwp that has terminated but has not been reaped with
!      thr_join(3C) or pthread_join(3C).
  
       pr_pid, pr_ppi, pr_pgid, and pr_sid are, respectively, the process ID,
       the ID of the process's parent, the process's process group ID, and the
       process's session ID.
  
*** 2027,2032 ****
  
       On SPARC based machines, the types gregset_t and fpregset_t defined in
       <sys/regset.h> are similar to but not the same as the types prgregset_t
       and prfpregset_t defined in <procfs.h>.
  
! illumos                         January 6, 2020                        illumos
--- 2027,2032 ----
  
       On SPARC based machines, the types gregset_t and fpregset_t defined in
       <sys/regset.h> are similar to but not the same as the types prgregset_t
       and prfpregset_t defined in <procfs.h>.
  
! illumos                          May 17, 2020                          illumos