8257517: LogCompilation: Add -z to the help messages

Reviewed-by: redestad

src/utils/LogCompilation/src/main/java/com/sun/hotspot/tools/compiler/LogCompilation.java

@@ -60,6 +60,7 @@ public static void usage(int exitcode) {
         System.out.println("  -s:   sort events by start time (default)");
         System.out.println("  -e:   sort events by elapsed time");
         System.out.println("  -n:   sort events by name and start");
+        System.out.println("  -z:   sort events by compiled code size");
         System.out.println("  -C:   compare logs (give files to compare on command line)");
         System.out.println("  -d:   do not print compilation IDs");
         System.exit(exitcode);