[BUG] slabtop keep printing when parameter is "-o -d xxx"
-o set run_once to 1 and delay to 0, but -d only set delay to xxx, so when parameter is "-o -d xxx", it cannot break the while loop, and keep printing because run_once isn't 0
-o set run_once to 1 and delay to 0, but -d only set delay to xxx, so when parameter is "-o -d xxx", it cannot break the while loop, and keep printing because run_once isn't 0