Rather than conditionally assigning ujn, initialise ujn above the
loop to invent the leading 0 for u, then unconditionally load ujn
at the bottom of the loop. This code operates on the basis that
n >= 2, hence j+n-1 is always greater than zero.
Change-Id: I1272ef30c787ed8707ae8421af2adcccc776d389
Reviewed-on: https://go-review.googlesource.com/c/go/+/467555
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Robert Griesemer <gri@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Robert Griesemer <gri@google.com>