encoding/json: clarify omitempty option for {array,slice,map,string}
This CL is inspired by:
https://github.com/golang/go/issues/29310#issuecomment-
758768325
When I read omitempty option in encoding/xml package, I find it's
a bit different than encoding/json package.
I think it's more precise to say:
"any array, slice, map, or string of length zero."
Update #29310
Change-Id: Ia77167c3155411640224b349d4b34d0bb91ee11e
GitHub-Last-Rev:
a4cf00dcc75067bd259bc600f288c9de4b5393cf
GitHub-Pull-Request: golang/go#69984
Reviewed-on: https://go-review.googlesource.com/c/go/+/621835
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Michael Pratt <mpratt@google.com>