4823 don't open-code NSEC2MSEC and MSEC2NSEC

*** 279,290 ****
                      DELTA(lcols_scan), DELTA(lcols_unenforced_cap),
                      DELTA(lcols_rss_sample), col->col_src_stat.lcols_min_rss,
                      col->col_src_stat.lcols_max_rss, col->col_rsslimit,
                      (col->col_src_stat.lcols_proc_in -
                      col->col_old_stat.lcols_proc_out), DELTA(lcols_proc_out),
!                     DELTA(lcols_scan_count), DELTA(lcols_scan_time_complete) /
!                     (NANOSEC / MILLISEC));
                  col->col_old_stat = col->col_src_stat;
  
                  col = col->col_next;
          }
  
--- 279,290 ----
                      DELTA(lcols_scan), DELTA(lcols_unenforced_cap),
                      DELTA(lcols_rss_sample), col->col_src_stat.lcols_min_rss,
                      col->col_src_stat.lcols_max_rss, col->col_rsslimit,
                      (col->col_src_stat.lcols_proc_in -
                      col->col_old_stat.lcols_proc_out), DELTA(lcols_proc_out),
!                     DELTA(lcols_scan_count),
!                     NSEC2MSEC(DELTA(lcols_scan_time_complete)));
                  col->col_old_stat = col->col_src_stat;
  
                  col = col->col_next;
          }