4823 don't open-code NSEC2MSEC and MSEC2NSEC

@@ -279,12 +279,12 @@
                     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));
+                    DELTA(lcols_scan_count),
+                    NSEC2MSEC(DELTA(lcols_scan_time_complete)));
                 col->col_old_stat = col->col_src_stat;
 
                 col = col->col_next;
         }