maps: use strings.EqualFold in example

Change-Id: I40a9684a9465e844ff1de46601edf23de7b637e3
GitHub-Last-Rev: 15ef023853d1f18160b290f32468f1ce0c38d12d
GitHub-Pull-Request: golang/go#65541
Reviewed-on: https://go-review.googlesource.com/c/go/+/561855
Auto-Submit: Sean Liao <sean@liao.dev>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Freeman <markfreeman@google.com>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Cherry Mui <cherryyz@google.com>

diff --git a/src/maps/example_test.go b/src/maps/example_test.go
index 0795941d9064bf0bed2fbf3654013c9b721748bb..b4ccff6d45c2b57e158b538b87bb4c95fe352404 100644 (file)
--- a/src/maps/example_test.go
+++ b/src/maps/example_test.go
@@ -128,7 +128,7 @@ func ExampleEqualFunc() {
                1000: []byte("Thousand"),
        }
        eq := maps.EqualFunc(m1, m2, func(v1 string, v2 []byte) bool {
-               return strings.ToLower(v1) == strings.ToLower(string(v2))
+               return strings.EqualFold(v1, string(v2))
        })
        fmt.Println(eq)
        // Output: