cherry pick: .DS_Store source_documents fix
cherry pick: .DS_Store source_documents fix

brsimioni/rstudio,vbelakov/rstudio,suribes/rstudio,JanMarvin/rstudio,tbarrongh/rstudio,john-r-mcpherson/rstudio,tbarrongh/rstudio,maligulzar/Rstudio-instrumented,nvoron23/rstudio,pssguy/rstudio,pssguy/rstudio,jzhu8803/rstudio,githubfun/rstudio,more1/rstudio,Sage-Bionetworks/rstudio,maligulzar/Rstudio-instrumented,maligulzar/Rstudio-instrumented,brsimioni/rstudio,jrnold/rstudio,john-r-mcpherson/rstudio,piersharding/rstudio,jar1karp/rstudio,jrnold/rstudio,piersharding/rstudio,jrnold/rstudio,vbelakov/rstudio,sfloresm/rstudio,edrogers/rstudio,suribes/rstudio,pssguy/rstudio,vbelakov/rstudio,john-r-mcpherson/rstudio,JanMarvin/rstudio,john-r-mcpherson/rstudio,thklaus/rstudio,suribes/rstudio,tbarrongh/rstudio,suribes/rstudio,thklaus/rstudio,githubfun/rstudio,edrogers/rstudio,edrogers/rstudio,jrnold/rstudio,tbarrongh/rstudio,nvoron23/rstudio,thklaus/rstudio,jzhu8803/rstudio,pssguy/rstudio,jrnold/rstudio,vbelakov/rstudio,sfloresm/rstudio,more1/rstudio,jar1karp/rstudio,brsimioni/rstudio,sfloresm/rstudio,tbarrongh/rstudio,more1/rstudio,vbelakov/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,jar1karp/rstudio,jzhu8803/rstudio,brsimioni/rstudio,thklaus/rstudio,maligulzar/Rstudio-instrumented,tbarrongh/rstudio,more1/rstudio,JanMarvin/rstudio,suribes/rstudio,jrnold/rstudio,jzhu8803/rstudio,maligulzar/Rstudio-instrumented,githubfun/rstudio,jzhu8803/rstudio,thklaus/rstudio,piersharding/rstudio,more1/rstudio,jar1karp/rstudio,brsimioni/rstudio,piersharding/rstudio,edrogers/rstudio,sfloresm/rstudio,Sage-Bionetworks/rstudio,jzhu8803/rstudio,jrnold/rstudio,jar1karp/rstudio,edrogers/rstudio,thklaus/rstudio,nvoron23/rstudio,piersharding/rstudio,nvoron23/rstudio,john-r-mcpherson/rstudio,Sage-Bionetworks/rstudio,brsimioni/rstudio,githubfun/rstudio,maligulzar/Rstudio-instrumented,maligulzar/Rstudio-instrumented,jrnold/rstudio,JanMarvin/rstudio,jar1karp/rstudio,tbarrongh/rstudio,vbelakov/rstudio,Sage-Bionetworks/rstudio,jrnold/rstudio,piersharding/rstudio,suribes/rstudio,more1/rstudio,jar1karp/rstudio,githubfun/rstudio,jzhu8803/rstudio,pssguy/rstudio,thklaus/rstudio,sfloresm/rstudio,Sage-Bionetworks/rstudio,jar1karp/rstudio,JanMarvin/rstudio,maligulzar/Rstudio-instrumented,thklaus/rstudio,githubfun/rstudio,suribes/rstudio,pssguy/rstudio,nvoron23/rstudio,sfloresm/rstudio,sfloresm/rstudio,brsimioni/rstudio,edrogers/rstudio,Sage-Bionetworks/rstudio,more1/rstudio,maligulzar/Rstudio-instrumented,pssguy/rstudio,jzhu8803/rstudio,vbelakov/rstudio,piersharding/rstudio,nvoron23/rstudio,john-r-mcpherson/rstudio,sfloresm/rstudio,more1/rstudio,suribes/rstudio,Sage-Bionetworks/rstudio,githubfun/rstudio,tbarrongh/rstudio,jar1karp/rstudio,edrogers/rstudio,john-r-mcpherson/rstudio,JanMarvin/rstudio,john-r-mcpherson/rstudio,vbelakov/rstudio,piersharding/rstudio,piersharding/rstudio,pssguy/rstudio,edrogers/rstudio,githubfun/rstudio,JanMarvin/rstudio,nvoron23/rstudio,brsimioni/rstudio