Done with:

go get go@1.18 toolchain@none
go mod tidy
go fix ./...

Using go1.21.3.

Otherwise the module is considered to have an implicit go 1.16 line.
While here, drop the by-now-always-satisfied go1.7 build constraint.

For golang/go#60268.

Change-Id: Ie0216c6f22c5e25321042e1b7bdaa59f3c3ae843
Reviewed-on: https://go-review.googlesource.com/c/time/+/534243
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Closes golang/go#17261

Change-Id: Ifeacc8df45fb59e7781ddcc35c2fde0aa80188eb
Reviewed-on: https://go-review.googlesource.com/c/time/+/530855
Auto-Submit: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Sameer Ajmani <sameer@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Very minor tweaks:
 - Remove (c) pseudosymbol.
 - Remove "All Rights Reserved."
 - Change "Google Inc." (no longer exists) to "Google LLC".

[git-generate]
echo '
,s/\(c\) //
,s/ All rights reserved.//
,s/Google Inc./Google LLC/
w
q
' | sam -d LICENSE

Change-Id: Iaff5a0b4df05a69b33e2aa63f42e2476c255952d
Reviewed-on: https://go-review.googlesource.com/c/time/+/598529
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Decrementing the burst in the reserveN method will frequently lead to us
setting the burst to 0 which makes the limiter mostly unusable.

This code was originally added in https://go.dev/cl/323429 to fix #39984
but the implementation introduced a different bug. To avoid regressing
to the behaviour described in #39984, pre-fill the limiter to the burst
value in the constructor.

Fixes #68541

Change-Id: Iab3b85d548a44fcb2d058336e5bbf11b19ea67b1
Reviewed-on: https://go-review.googlesource.com/c/time/+/600876
Reviewed-by: Sameer Ajmani <sameer@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Sameer Ajmani <sameer@golang.org>