TUN-4356: Set AUTOMAXPROCS to the CPU limit when running in a Linux container

vendor/go.uber.org/automaxprocs/README.md

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+# automaxprocs [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
+
+Automatically set `GOMAXPROCS` to match Linux container CPU quota.
+
+## Installation
+
+`go get -u go.uber.org/automaxprocs`
+
+## Quick Start
+
+```go
+import _ "go.uber.org/automaxprocs"
+
+func main() {
+  // Your application logic here.
+}
+```
+
+## Development Status: Stable
+
+All APIs are finalized, and no breaking changes will be made in the 1.x series
+of releases. Users of semver-aware dependency management systems should pin
+automaxprocs to `^1`.
+
+## Contributing
+
+We encourage and support an active, healthy community of contributors —
+including you! Details are in the [contribution guide](CONTRIBUTING.md) and
+the [code of conduct](CODE_OF_CONDUCT.md). The automaxprocs maintainers keep
+an eye on issues and pull requests, but you can also report any negative
+conduct to oss-conduct@uber.com. That email list is a private, safe space;
+even the automaxprocs maintainers don't have access, so don't hesitate to hold
+us to a high standard.
+
+<hr>
+
+Released under the [MIT License](LICENSE).
+
+[doc-img]: https://godoc.org/go.uber.org/automaxprocs?status.svg
+[doc]: https://godoc.org/go.uber.org/automaxprocs
+[ci-img]: https://travis-ci.com/uber-go/automaxprocs.svg?branch=master
+[ci]: https://travis-ci.com/uber-go/automaxprocs
+[cov-img]: https://codecov.io/gh/uber-go/automaxprocs/branch/master/graph/badge.svg
+[cov]: https://codecov.io/gh/uber-go/automaxprocs
+
+