13178 ::msgbuf could see more than 8KB of logs
Reviewed by: Andy Fiddaman <Andy@omniosce.org>
Reviewed by: Toomas Soome <tsoome@me.com>

*** 214,224 ****
           * These messages are drained via softcall, or explicitly by panic().
           */
          log_intrq = log_makeq(0, LOG_HIWAT, (void *)ipltospl(SPL8));
  
          /*
!          * Create a queue to hold the most recent 8K of console messages.
           * Useful for debugging.  Required by the "$<msgbuf" adb macro.
           */
          log_recentq = log_makeq(0, LOG_RECENTSIZE, NULL);
  
          /*
--- 214,224 ----
           * These messages are drained via softcall, or explicitly by panic().
           */
          log_intrq = log_makeq(0, LOG_HIWAT, (void *)ipltospl(SPL8));
  
          /*
!          * Create a queue to hold the most recent 64K of console messages.
           * Useful for debugging.  Required by the "$<msgbuf" adb macro.
           */
          log_recentq = log_makeq(0, LOG_RECENTSIZE, NULL);
  
          /*