const compress/flate.minOffsetSize

2 uses

	compress/flate (current package)
		deflate.go#L39: 	minOffsetSize  = 1   // The shortest offset that makes any sense
		deflate.go#L550: 			d.tokens.AddMatch(uint32(prevLength-3), uint32(prevOffset-minOffsetSize))

The pages are generated with Golds v0.8.4. (GOOS=linux GOARCH=amd64)