Simplify `min_match_length`
Simplify `min_match_length`

Simplify `min_match_length` using an iterative algorithm for computing
match lengths and a recursive algorithm for minimizing them.

prahlad37/pick,prahlad37/pick,calleerlandsson/pick,thoughtbot/pick,thoughtbot/pick,prahlad37/pick,DBOTW/pick,calleerlandsson/pick,DBOTW/pick,prahlad37/pick,thoughtbot/pick,calleerlandsson/pick,DBOTW/pick,thoughtbot/pick