all: replace io/ioutil with io and os package

For #45557

Change-Id: Icd0ff87bf46592e89cd4c88754cf07c3b0c300e6
GitHub-Last-Rev: f13b442112124c856513f1e5b6de17aa706787fe
GitHub-Pull-Request: golang/exp#43
Run-TryBot: Jenny Rakoczy <>
Reviewed-by: Jenny Rakoczy <>
TryBot-Result: Gopher Robot <>
Run-TryBot: Ian Lance Taylor <>
Run-TryBot: Ian Lance Taylor <>
Reviewed-by: Meng Zhuo <>
Reviewed-by: Ian Lance Taylor <>
Run-TryBot: Meng Zhuo <>
Auto-Submit: Jenny Rakoczy <>
25 files changed
tree: a0ab5a88a571285d348909515f65b2a80a754f20
  1. apidiff/
  2. cmd/
  3. constraints/
  4. devtools/
  5. ebnf/
  6. ebnflint/
  7. errors/
  8. event/
  9. inotify/
  10. io/
  11. jsonrpc2/
  12. maps/
  13. mmap/
  14. rand/
  15. shiny/
  16. shootout/
  17. slices/
  18. slog/
  19. sumdb/
  20. typeparams/
  21. utf8string/
  22. .gitattributes
  23. .gitignore
  24. codereview.cfg
  26. go.mod
  27. go.sum



This subrepository holds experimental and deprecated (in the old directory) packages.

The idea for this subrepository originated as the pkg/exp directory of the main repository, but its presence there made it unavailable to users of the binary downloads of the Go installation. The subrepository has therefore been created to make it possible to go get these packages.

Warning: Packages here are experimental and unreliable. Some may one day be promoted to the main repository or other subrepository, or they may be modified arbitrarily or even disappear altogether.

In short, code in this subrepository is not subject to the Go 1 compatibility promise. (No subrepo is, but the promise is even more likely to be violated by go.exp than the others.)

Caveat emptor.