Fix test_wm_wait on Sandcastle
Fix test_wm_wait on Sandcastle

Summary:
When running Watchman's integration tests on Sandcastle (Facebook's internal continuous integration system) with Python 2.7, test_wm_wait.py can't find the watchman-wait program. This causes the tests in test_wm_wait.py to fail.

Make watchman-wait visible by expressing a dependency on it in the TARGETS file, fixing test_wm_wait's tests.

Reviewed By: wez

Differential Revision: D8473332

fbshipit-source-id: c67c982d3db92c4c744d78569afb4a2d24e3f42b

nodakai/watchman,wez/watchman,wez/watchman,wez/watchman,facebook/watchman,wez/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,facebook/watchman,wez/watchman,wez/watchman,wez/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,wez/watchman,nodakai/watchman