os: replace "used to used" with "used to use" in description text
Change-Id: I5445f3393373423592dfdd88b91d267c2c98d113
GitHub-Last-Rev:
f554da58f49deb38101fd9ffba744bf4bf35ab55
GitHub-Pull-Request: golang/go#61749
Reviewed-on: https://go-review.googlesource.com/c/go/+/515798
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: qiulaidongfeng <2645477756@qq.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>