Fix open source script
Fix open source script

Test Plan: build

Reviewed By: andreazevedo

Differential Revision: D2683296

fb-gh-sync-id: 1bcdbec5caa59a415b5db6f8dc490efd7e000b46

yqzhang/mcrouter,yqzhang/mcrouter,facebook/mcrouter,synecdoche/mcrouter,nvaller/mcrouter,facebook/mcrouter,synecdoche/mcrouter,nvaller/mcrouter,nvaller/mcrouter,facebook/mcrouter,nvaller/mcrouter,synecdoche/mcrouter,facebook/mcrouter,synecdoche/mcrouter,yqzhang/mcrouter,yqzhang/mcrouter