errgroup: fix build errors in errgroup_test

Change-Id: Ie5ebfa26b6234f833139784da859d32cc1416b26
Reviewed-on: https://go-review.googlesource.com/24961
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
1 file changed
tree: 04e6c860b7c58fdd1718a73a871172162e12c560
  1. errgroup/
  2. AUTHORS
  3. builders_test.go
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README