Fix bug with limit=None in replace_more_comments
Fix bug with limit=None in replace_more_comments

tehp/reddit,darthkedrik/praw,leviroth/praw,darthkedrik/praw,nmtake/praw,13steinj/praw,voussoir/reddit,13steinj/praw,RGood/praw,iAmMrinal0/reddit,tehp/reddit,tehp/reddit,nmtake/praw,praw-dev/praw,gschizas/praw,TacticalGoat/reddit,gschizas/praw,iAmMrinal0/reddit,voussoir/reddit,leviroth/praw,praw-dev/praw,RGood/praw,TacticalGoat/reddit