process: fix typo in comments

Fixing a typo in comments, the word 'remaining' had a typo.

PR-URL: nodejs#11503
Fixes: nodejs#11491
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/internal/process.js

@@ -74,7 +74,9 @@ function setup_cpuUsage() {
   };
 }
 
-
+// The 3 entries filled in by the original process.hrtime contains
+// the upper/lower 32 bits of the second part of the value,
+// and the remaining nanoseconds of the value.
 function setup_hrtime() {
   const _hrtime = process.hrtime;
   const hrValues = new Uint32Array(3);