Store Go root in .buckconfig.local in travis
Store Go root in .buckconfig.local in travis

Summary: Storing in `.buckconfig` makes git index dirty which is then forces autoformatting check failing.

Test Plan: CI

Reviewed By: ttsugriy

fbshipit-source-id: 6cfce09

Addepar/buck,dsyang/buck,nguyentruongtho/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,SeleniumHQ/buck,nguyentruongtho/buck,k21/buck,robbertvanginkel/buck,Addepar/buck,shybovycha/buck,shs96c/buck,Addepar/buck,facebook/buck,shybovycha/buck,k21/buck,rmaz/buck,k21/buck,zpao/buck,robbertvanginkel/buck,Addepar/buck,k21/buck,clonetwin26/buck,zhan-xiong/buck,rmaz/buck,shs96c/buck,zhan-xiong/buck,k21/buck,JoelMarcey/buck,zhan-xiong/buck,JoelMarcey/buck,shs96c/buck,ilya-klyuchnikov/buck,romanoid/buck,shybovycha/buck,Addepar/buck,dsyang/buck,LegNeato/buck,Addepar/buck,LegNeato/buck,clonetwin26/buck,zhan-xiong/buck,JoelMarcey/buck,shs96c/buck,kageiit/buck,kageiit/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,shybovycha/buck,Addepar/buck,dsyang/buck,clonetwin26/buck,rmaz/buck,rmaz/buck,SeleniumHQ/buck,JoelMarcey/buck,robbertvanginkel/buck,facebook/buck,zpao/buck,romanoid/buck,rmaz/buck,brettwooldridge/buck,robbertvanginkel/buck,Addepar/buck,zhan-xiong/buck,nguyentruongtho/buck,dsyang/buck,brettwooldridge/buck,brettwooldridge/buck,zpao/buck,SeleniumHQ/buck,facebook/buck,SeleniumHQ/buck,shs96c/buck,robbertvanginkel/buck,Addepar/buck,romanoid/buck,shs96c/buck,shs96c/buck,ilya-klyuchnikov/buck,LegNeato/buck,ilya-klyuchnikov/buck,nguyentruongtho/buck,SeleniumHQ/buck,romanoid/buck,rmaz/buck,rmaz/buck,SeleniumHQ/buck,LegNeato/buck,brettwooldridge/buck,romanoid/buck,shybovycha/buck,JoelMarcey/buck,SeleniumHQ/buck,clonetwin26/buck,ilya-klyuchnikov/buck,romanoid/buck,shs96c/buck,brettwooldridge/buck,SeleniumHQ/buck,k21/buck,LegNeato/buck,nguyentruongtho/buck,dsyang/buck,shs96c/buck,nguyentruongtho/buck,LegNeato/buck,zpao/buck,romanoid/buck,zhan-xiong/buck,brettwooldridge/buck,LegNeato/buck,ilya-klyuchnikov/buck,zhan-xiong/buck,rmaz/buck,robbertvanginkel/buck,clonetwin26/buck,dsyang/buck,robbertvanginkel/buck,Addepar/buck,k21/buck,clonetwin26/buck,zpao/buck,dsyang/buck,clonetwin26/buck,brettwooldridge/buck,clonetwin26/buck,LegNeato/buck,brettwooldridge/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,Addepar/buck,k21/buck,JoelMarcey/buck,clonetwin26/buck,JoelMarcey/buck,zpao/buck,nguyentruongtho/buck,dsyang/buck,shybovycha/buck,JoelMarcey/buck,facebook/buck,facebook/buck,zhan-xiong/buck,shybovycha/buck,LegNeato/buck,robbertvanginkel/buck,shs96c/buck,shybovycha/buck,k21/buck,JoelMarcey/buck,clonetwin26/buck,ilya-klyuchnikov/buck,shybovycha/buck,k21/buck,romanoid/buck,SeleniumHQ/buck,LegNeato/buck,ilya-klyuchnikov/buck,clonetwin26/buck,brettwooldridge/buck,k21/buck,rmaz/buck,rmaz/buck,shybovycha/buck,romanoid/buck,romanoid/buck,kageiit/buck,facebook/buck,clonetwin26/buck,dsyang/buck,shs96c/buck,romanoid/buck,shybovycha/buck,LegNeato/buck,kageiit/buck,shybovycha/buck,JoelMarcey/buck,facebook/buck,romanoid/buck,rmaz/buck,robbertvanginkel/buck,SeleniumHQ/buck,dsyang/buck,Addepar/buck,clonetwin26/buck,kageiit/buck,dsyang/buck,JoelMarcey/buck,LegNeato/buck,SeleniumHQ/buck,Addepar/buck,brettwooldridge/buck,robbertvanginkel/buck,rmaz/buck,SeleniumHQ/buck,SeleniumHQ/buck,rmaz/buck,romanoid/buck,dsyang/buck,zpao/buck,ilya-klyuchnikov/buck,kageiit/buck,robbertvanginkel/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,brettwooldridge/buck,kageiit/buck,LegNeato/buck,shybovycha/buck,brettwooldridge/buck,shs96c/buck,k21/buck,robbertvanginkel/buck,k21/buck,shs96c/buck,zhan-xiong/buck,dsyang/buck