Fix jshint warning
Fix jshint warning

GREYFOXRGR/winjs,ladyinblack/winjs,ladyinblack/winjs,rigdern/winjs,gautamsi/winjs,PaulWells/winjs,Guadzilah/winjs,grork/winjs,grork/winjs,KevinTCoughlin/winjs,IveWong/winjs,Guadzilah/winjs,ladyinblack/winjs,jmptrader/winjs,nobuoka/winjs,edrohler/winjs,KevinTCoughlin/winjs,IveWong/winjs,jmptrader/winjs,edrohler/winjs,PaulWells/winjs,kevinwsbr/winjs,CensoredUser/winjs,CensoredUser/winjs,KevinTCoughlin/winjs,kevinwsbr/winjs,Guadzilah/winjs,IveWong/winjs,nobuoka/winjs,rigdern/winjs,kevinwsbr/winjs,GREYFOXRGR/winjs,edrohler/winjs,rigdern/winjs,PaulWells/winjs,nobuoka/winjs,CensoredUser/winjs,grork/winjs,gautamsi/winjs,gautamsi/winjs,GREYFOXRGR/winjs,jmptrader/winjs