Fix export specifier validator.
Fix export specifier validator.

kellyselden/babel,iamchenxin/babel,maurobringolf/babel,hzoo/babel,jridgewell/babel,samwgoldman/babel,jchip/babel,maurobringolf/babel,STRML/babel,rmacklin/babel,ameyms/babel,guybedford/babel,kassens/babel,guybedford/babel,kaicataldo/babel,STRML/babel,existentialism/babel,rmacklin/babel,kaicataldo/babel,chicoxyzzy/babel,vadzim/babel,babel/babel,jridgewell/babel,claudiopro/babel,shuhei/babel,ccschneidr/babel,iamchenxin/babel,zjmiller/babel,hzoo/babel,kassens/babel,PolymerLabs/babel,dustyjewett/babel-plugin-transform-es2015-modules-commonjs-ember,chicoxyzzy/babel,kellyselden/babel,lxe/babel,guybedford/babel,hzoo/babel,hulkish/babel,existentialism/babel,jhen0409/babel,kaicataldo/babel,kedromelon/babel,KunGha/babel,antn/babel,maurobringolf/babel,bcoe/babel,PolymerLabs/babel,Skillupco/babel,jridgewell/babel,kellyselden/babel,babel/babel,claudiopro/babel,zertosh/babel,garyjN7/babel,jridgewell/babel,tikotzky/babel,Skillupco/babel,hulkish/babel,garyjN7/babel,Skillupco/babel,ameyms/babel,hulkish/babel,iamchenxin/babel,zjmiller/babel,vadzim/babel,samwgoldman/babel,zenparsing/babel,claudiopro/babel,PolymerLabs/babel,kellyselden/babel,chicoxyzzy/babel,kedromelon/babel,tikotzky/babel,zenparsing/babel,shuhei/babel,kaicataldo/babel,chicoxyzzy/babel,hzoo/babel,Skillupco/babel,hulkish/babel,shuhei/babel,jhen0409/babel,zertosh/babel,ccschneidr/babel,samwgoldman/babel,kedromelon/babel,KunGha/babel,antn/babel,lxe/babel,babel/babel,babel/babel,existentialism/babel,jchip/babel,bcoe/babel