blocksize should be int64, otherwise 32bit ssdeep not quals 64bit ssdeep

[chennqqi]

type ssdeepState struct {
rollingState rollingState
blockSize int64
hashString1 string
hashString2 string
blockHash1 uint32
blockHash2 uint32
}

[utkonos]

@glaslos this issue has already been fixed in the following commit: 0449e69
I suggest that this issue be closed.