Summary:
In a strongly typed langage, using strings should be avoided whenever possible
as they do not provide the safety guarantees that types provide.
I took the liberty of removing all the filesystems that are not relevant for
Mercurial for simplification reasons. If needs arise, we can always add a new
FsType to the enum.
Reviewed By: DurhamG
Differential Revision: D20517138
fbshipit-source-id: 0a38b53c6a87f05f4b2d664038e10c4293de96ae
Summary: Similar to D13982877. Try to get names like "fuse.ntfs".
Reviewed By: farnz
Differential Revision: D20313392
fbshipit-source-id: 8363d3d92843e6afb53a0003950be083034bd841
