9842 man page typos and spelling

*** 458,468 ****
         The real-time priority, time quantum, and time quantum signal are
         inherited across the fork(2) and exec(2) system calls. When using the
         time quantum signal with a user defined signal handler across the
         exec(2) system call, the new image must install an appropriate user
         defined signal handler before the time quantum expires. Otherwise,
!        unpredicable behavior would result.
  
     Time-Sharing Class
         The time-sharing scheduling policy provides for a fair and effective
         allocation of the CPU resource among processes with varying CPU
         consumption characteristics. The objectives of the time-sharing policy
--- 458,468 ----
         The real-time priority, time quantum, and time quantum signal are
         inherited across the fork(2) and exec(2) system calls. When using the
         time quantum signal with a user defined signal handler across the
         exec(2) system call, the new image must install an appropriate user
         defined signal handler before the time quantum expires. Otherwise,
!        unpredictable behavior would result.
  
     Time-Sharing Class
         The time-sharing scheduling policy provides for a fair and effective
         allocation of the CPU resource among processes with varying CPU
         consumption characteristics. The objectives of the time-sharing policy