fix comment
fix comment

Test Plan: No

Reviewed By: philipp@fb.com

FB internal diff: D709795

fw1121/folly,stonegithubs/folly,stonegithubs/folly,project-zerus/folly,sakishum/folly,colemancda/folly,gaoyingie/folly,romange/folly,cppfool/folly,wildinto/folly,CJstar/folly,xzmagic/folly,constantine001/folly,constantine001/folly,ykarlsbrun/folly,reddit/folly,stonegithubs/folly,bowlofstew/folly,shaobz/folly,yangjin-unique/folly,lifei/folly,kernelim/folly,rklabs/folly,cole14/folly,stonegithubs/folly,tempbottle/folly,KSreeHarsha/folly,loversInJapan/folly,Eagle-X/folly,clearlinux/folly,loversInJapan/folly,KSreeHarsha/folly,Orvid/folly,theiver9827/folly,chjp2046/folly,SammyK/folly,brunomorishita/folly,romange/folly,raphaelamorim/folly,lifei/folly,Hincoin/folly,gavioto/folly,cppfool/folly,floxard/folly,Orvid/folly,unmeshvrije/C--,SeanRBurton/folly,romange/folly,PoisonBOx/folly,sonnyhu/folly,bsampath/folly,PPC64/folly,bowlofstew/folly,loverszhaokai/folly,xzmagic/folly,gavioto/folly,bikong2/folly,bsampath/folly,loversInJapan/folly,zhiweicai/folly,doctaweeks/folly,theiver9827/folly,facebook/folly,shaobz/folly,PPC64/folly,cppfool/folly,zhiweicai/folly,brunomorishita/folly,loverszhaokai/folly,PoisonBOx/folly,hongliangzhao/folly,tomhughes/folly,xzmagic/folly,zhiweicai/folly,lifei/folly,cole14/folly,renyinew/folly,romange/folly,theiver9827/folly,bowlofstew/folly,SeanRBurton/folly,fw1121/folly,SeanRBurton/folly,colemancda/folly,SeanRBurton/folly,gavioto/folly,juniway/folly,doctaweeks/folly,leolujuyi/folly,kernelim/folly,upsoft/folly,Hincoin/folly,theiver9827/folly,chjp2046/folly,project-zerus/folly,KSreeHarsha/folly,chjp2046/folly,colemancda/folly,unmeshvrije/C--,alexst07/folly,charsyam/folly,leolujuyi/folly,nickhen/folly,shaobz/folly,sakishum/folly,gaoyingie/folly,leolujuyi/folly,xzmagic/folly,guker/folly,CJstar/folly,kernelim/folly,tempbottle/folly,loversInJapan/folly,clearlinux/folly,facebook/folly,leolujuyi/folly,facebook/folly,clearlylin/folly,CJstar/folly,raphaelamorim/folly,constantine001/folly,brunomorishita/folly,upsoft/folly,tomhughes/folly,bsampath/folly,arg0/folly,gavioto/folly,leolujuyi/folly,bsampath/folly,fw1121/folly,chjp2046/folly,bikong2/folly,bikong2/folly,bikong2/folly,theiver9827/folly,hongliangzhao/folly,tempbottle/folly,cppfool/folly,arg0/folly,CJstar/folly,sakishum/folly,floxard/folly,PPC64/folly,chjp2046/folly,Eagle-X/folly,arg0/folly,loverszhaokai/folly,mqeizi/folly,nickhen/folly,ykarlsbrun/folly,yangjin-unique/folly,arg0/folly,clearlinux/folly,sonnyhu/folly,gaoyingie/folly,gavioto/folly,PoisonBOx/folly,clearlinux/folly,bobegir/folly,fw1121/folly,lifei/folly,Eagle-X/folly,Hincoin/folly,Orvid/folly,sonnyhu/folly,kernelim/folly,sakishum/folly,stonegithubs/folly,constantine001/folly,brunomorishita/folly,guker/folly,PoisonBOx/folly,upsoft/folly,upsoft/folly,wildinto/folly,cole14/folly,clearlylin/folly,Eagle-X/folly,floxard/folly,raphaelamorim/folly,bowlofstew/folly,reddit/folly,mqeizi/folly,charsyam/folly,nickhen/folly,alexst07/folly,charsyam/folly,PoisonBOx/folly,SammyK/folly,floxard/folly,raphaelamorim/folly,mqeizi/folly,reddit/folly,ykarlsbrun/folly,clearlylin/folly,alexst07/folly,Orvid/folly,ykarlsbrun/folly,SeanRBurton/folly,project-zerus/folly,yangjin-unique/folly,KSreeHarsha/folly,unmeshvrije/C--,juniway/folly,romange/folly,SammyK/folly,renyinew/folly,loverszhaokai/folly,guker/folly,SammyK/folly,juniway/folly,Eagle-X/folly,constantine001/folly,colemancda/folly,upsoft/folly,sonnyhu/folly,clearlylin/folly,facebook/folly,shaobz/folly,bobegir/folly,mqeizi/folly,shaobz/folly,unmeshvrije/C--,unmeshvrije/C--,colemancda/folly,tempbottle/folly,bobegir/folly,yangjin-unique/folly,hongliangzhao/folly,clearlylin/folly,wildinto/folly,gaoyingie/folly,cole14/folly,doctaweeks/folly,rklabs/folly,gaoyingie/folly,charsyam/folly,juniway/folly,PPC64/folly,bsampath/folly,fw1121/folly,tomhughes/folly,bobegir/folly,project-zerus/folly,Orvid/folly,hongliangzhao/folly,cole14/folly,kernelim/folly,rklabs/folly,mqeizi/folly,Hincoin/folly,CJstar/folly,KSreeHarsha/folly,doctaweeks/folly,xzmagic/folly,yangjin-unique/folly,ykarlsbrun/folly,hongliangzhao/folly,reddit/folly,brunomorishita/folly,nickhen/folly,alexst07/folly,PPC64/folly,sonnyhu/folly,zhiweicai/folly,facebook/folly,wildinto/folly,sakishum/folly,renyinew/folly,renyinew/folly,floxard/folly,zhiweicai/folly,renyinew/folly,tomhughes/folly,juniway/folly,arg0/folly,nickhen/folly,reddit/folly,bowlofstew/folly,Hincoin/folly,rklabs/folly,alexst07/folly,wildinto/folly,bobegir/folly,tempbottle/folly,lifei/folly,unmeshvrije/C--,loversInJapan/folly,doctaweeks/folly,raphaelamorim/folly,clearlinux/folly,loverszhaokai/folly,bikong2/folly,guker/folly,tomhughes/folly,rklabs/folly,SammyK/folly,cppfool/folly,guker/folly,project-zerus/folly