Use long long for the 64-bit fingerprint table
Use long long for the 64-bit fingerprint table

Summary: Because these are always 64-bit values. This hasn't actually been an issue but is the correct thing to do.

Reviewed By: yfeldblum

Differential Revision: D5425658

fbshipit-source-id: 5bc204b3d1af2c710bd8b1665211d2971ccf7be7

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