Not accurate.
$ cat ~/code/scratch/repro-underscore-issue.sh
echo "GOPATH: $GOPATH"
mkdir -p $GOPATH/src/github.com/testcase/testdata
echo "package testdata" >
$GOPATH/src/github.com/testcase/testdata/testdata.go
echo "" >> $GOPATH/src/github.com/testcase/testdata/testdata.go
cd
Even with GOPATH set correctly, this can happen if you're running `go list
./...` and any directory in your current path is called `testdata`. ie.
```
$ pwd
/home/user/xyz/testdata/whatever/
$ go list ./...
_/home/user/xyz/testdata/whatever/xxx
```
On Friday, March 2, 2018 at 3:49:41 AM UTC-5,
