fsmonitor: reapply b1f62cd39b5c...
fsmonitor: reapply
b1f62cd39b5c
The recent revendoring of pywatchman undid this changeset.
Let's reapply it.
This commit was generated by running `hg graft -f b1f62cd39b5c`.
It applied cleanly.
Differential Revision:
https://phab.mercurial-scm.org/D7204