Refactoring getHostIdentifier and adding some extra logging
clang-format on the codebase

Periodic clang-format run.
can't format filesystem_tests because of raw strings
fixing two missing semi-colon issues with clang-format
manual fix to spacing issue
Merge pull request #486 from facebook/clang-format

clang-format on the codebase
Merge pull request #497 from facebook/host-ident-sig

Refactoring getHostIdentifier and adding some extra logging