Update gocryptfs to its latest version 1.8.0
Changelog for gocryptfs 1.8.0, 2020-05-09:
- Enable ACL support
- Ignore .nfsXXX temporary files
- Handle inode number collisions from multiple devices
- Drop -nonempty for fusermount3
- Reverse mode: improve inode number mapping and max=1000000000000000000 limitation
- Enable --buildmode=pie
- Migrate from dep to Go Modules
- go mod: update dependencies
- gocryptfs -speed: add XChaCha20-Poly1305-Go
- Respect GOMAXPROCS environment variable