def is_buggy_ua(agent):
 return ((('Humbug Desktop/' in agent) or ('Zulip Desktop/' in agent) or ('ZulipDesktop/' in agent)) and ('Mac' not in agent))

def is_buggy_ua ( agent ) : return ( ( ( 'Humbug Desktop/' in agent ) or ( 'Zulip Desktop/' in agent ) or ( 'ZulipDesktop/' in agent ) ) and ( 'Mac' not in agent ) )
discrimiate css served to clients based on user agent due to qtbug-3467 .