Look for redex-all in same directory as redex
Look for redex-all in same directory as redex

Summary: We were searching the PATH, but we can look a little harder

Reviewed By: satnam6502

Differential Revision: D3181217

fb-gh-sync-id: 9eaa0a541a441dd52371ac2bde7ff2b1357b8896
fbshipit-source-id: 9eaa0a541a441dd52371ac2bde7ff2b1357b8896

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex