tree b06f80bd4c3ade31db4474343dd8bf42ee6d5172
parent d1327738c277643f09c972a407083ad73c8ecf7b
author Yann Collet <cyan@fb.com> 1562956493 -0700
committer Yann Collet <cyan@fb.com> 1562956493 -0700

double-fast: changed the trade-off for a smaller positive change

same number of complementary insertions, just organized differently
(long at `ip-2`, short at `ip-1`).