io/ioutil: fix example test for WriteFile to allow it to run in the playground
The example for WriteFile assumed the existence of a testdata/ directory, which is not present on the playground. The example now writes the file to the current working directory, rather than to testdata/.
Fixes #32916
Change-Id: I577caac7e67ba9d9941b2dd19346ad5ff61e78d9
GitHub-Last-Rev:
40f14e0adc4ebc00fb2946fe0cbaf8e0cb99f62c
GitHub-Pull-Request: golang/go#43757
Reviewed-on: https://go-review.googlesource.com/c/go/+/284452
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>