fix #247: Correcting set_cookie docstring.
fix #247: Correcting set_cookie docstring.

mefyl/bottle,ericfrederich/bottle,kevintaw/bottle,samstav/bottle,myzhan/bottle,SamuelMarks/bottle,enzzc/bottle,catroot/bottle,myzhan/bottle,CentricWebEstate/bottle,enzzc/bottle,mefyl/bottle,kevintaw/bottle,hkmshb/bottle,adampresley/bottle,prologic/bottle,AWFU/bottle,wangjun/bottle,bottlepy/bottle,adampresley/bottle,hayate/bottle,CentricWebEstate/bottle,ifduyue/bottle,khirayama/bottle,Inndy/bottle,Inndy/bottle,AWFU/bottle,StdioA/bottle,khirayama/bottle,ListFranz/bottle,oz123/bottle,gaotongfei/bottle,xsank/bottle,ListFranz/bottle,fkazimierczak/bottle,SamuelMarks/bottle,Kjuly/bottle,taisa007/bottle-ja,SmithSamuelM/bottle,Kjuly/bottle,taisa007/bottle-ja,catroot/bottle,defnull/bottle,hayate/bottle,kevinmel2000/bottle,mrdon/bottle,hkmshb/bottle,prologic/bottle,bottlepy/bottle,oz123/bottle,SmithSamuelM/bottle,gaotongfei/bottle,wangjun/bottle,kevinmel2000/bottle,mrdon/bottle,fkazimierczak/bottle,defnull/bottle,ericfrederich/bottle,ifduyue/bottle,StdioA/bottle,samstav/bottle