Unbreak build.
Unbreak build.

Summary: I could have sworn I undid that un-templatification of the constructor.

Test Plan: build folly/test

Reviewed By: andrei.alexandrescu@fb.com

FB internal diff: D518981

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