message: Fix typo.
  GitOrigin-RevId:
diff: @@ -3,7 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
  go_library(
  name = "go_default_library",
  srcs = [
  - "constants.go",
  + "constant.go",
  "testutil.go",
  ],
  importpath = "github.com/google/tink/go/testutil",
  