Fix randomly created mock_dir
Fix randomly created mock_dir

PeterMosmans/letsencrypt,goofwear/letsencrypt,deserted/letsencrypt,tdfischer/lets-encrypt-preview,bestwpw/letsencrypt,rugk/letsencrypt,armersong/letsencrypt,fmarier/letsencrypt,DavidGarciaCat/letsencrypt,dietsche/letsencrypt,modulexcite/letsencrypt,kevinlondon/letsencrypt,luorenjin/letsencrypt,sjerdo/letsencrypt,hlieberman/letsencrypt,jsha/letsencrypt,rugk/letsencrypt,skynet/letsencrypt,modulexcite/letsencrypt,rutsky/letsencrypt,jmhodges/letsencrypt,beermix/letsencrypt,Sveder/letsencrypt,sapics/letsencrypt,jmhodges/letsencrypt,stewnorriss/letsencrypt,stewnorriss/letsencrypt,rlustin/letsencrypt,brentdax/letsencrypt,hlieberman/letsencrypt,tdfischer/lets-encrypt-preview,vcavallo/letsencrypt,TheBoegl/letsencrypt,letsencrypt/letsencrypt,martindale/letsencrypt,BillKeenan/lets-encrypt-preview,DavidGarciaCat/letsencrypt,lbeltrame/letsencrypt,mitnk/letsencrypt,digideskio/lets-encrypt-preview,jtl999/certbot,ghyde/letsencrypt,thanatos/lets-encrypt-preview,rutsky/letsencrypt,xgin/letsencrypt,Jonadabe/letsencrypt,solidgoldbomb/letsencrypt,tyagi-prashant/letsencrypt,beermix/letsencrypt,digideskio/lets-encrypt-preview,bestwpw/letsencrypt,wteiken/letsencrypt,jmaurice/letsencrypt,goofwear/letsencrypt,jtl999/certbot,stweil/letsencrypt,hsduk/lets-encrypt-preview,Jonadabe/letsencrypt,ghyde/letsencrypt,bsmr-misc-forks/letsencrypt,tyagi-prashant/letsencrypt,lmcro/letsencrypt,VladimirTyrin/letsencrypt,g1franc/lets-encrypt-preview,BillKeenan/lets-encrypt-preview,Hasimir/letsencrypt,mitnk/letsencrypt,kuba/letsencrypt,Bachmann1234/letsencrypt,letsencrypt/letsencrypt,ahojjati/letsencrypt,bsmr-misc-forks/letsencrypt,ahojjati/letsencrypt,riseofthetigers/letsencrypt,armersong/letsencrypt,mrb/letsencrypt,Hasimir/letsencrypt,ruo91/letsencrypt,xgin/letsencrypt,deserted/letsencrypt,jmaurice/letsencrypt,PeterMosmans/letsencrypt,lmcro/letsencrypt,fmarier/letsencrypt,solidgoldbomb/letsencrypt,twstrike/le_for_patching,twstrike/le_for_patching,Jadaw1n/letsencrypt,stweil/letsencrypt,jsha/letsencrypt,riseofthetigers/letsencrypt,mrb/letsencrypt,thanatos/lets-encrypt-preview,VladimirTyrin/letsencrypt,piru/letsencrypt,luorenjin/letsencrypt,wteiken/letsencrypt,sjerdo/letsencrypt,kevinlondon/letsencrypt,Sveder/letsencrypt,ruo91/letsencrypt,hsduk/lets-encrypt-preview,kuba/letsencrypt,BKreisel/letsencrypt,brentdax/letsencrypt,piru/letsencrypt,martindale/letsencrypt,sapics/letsencrypt,dietsche/letsencrypt,rlustin/letsencrypt,Bachmann1234/letsencrypt,lbeltrame/letsencrypt,Jadaw1n/letsencrypt,g1franc/lets-encrypt-preview,skynet/letsencrypt,vcavallo/letsencrypt,TheBoegl/letsencrypt,BKreisel/letsencrypt