More succint checking for undefined/null; move '%' before '=='
More succint checking for undefined/null; move '%' before '=='

HossainKhademian/Stylus,silvaemota/stylus,baotingfang/stylus,PeterWangPo/stylus,yetone/stylus,jonpacker/stylus,Panya/stylus,Ricardh522/stylus,angryrobot/stylus,stylus/stylus,trixter5/stylus,galenvagen/stylus,cemoulto/stylus,tyv/stylus,SimenB/stylus,peterkinalex/stylus-1,jangarcia/stylus,behzad88/stylus,darwin/stylus,rstacruz/stylus,johnnycopperstone/stylus,ThiagoGarciaAlves/stylus,meteor/stylus,a-x-/stylus,isaacs/stylus,Zagorakiss/stylus,Delapouite/stylus,modulexcite/stylus,jameswomack/stylus