update

Author: Zxilly

doc/next/3-tools.md

@@ -23,4 +23,4 @@ This analyzer is among the subset of analyzers that are run by `go test`.
 
 ### WebAssembly {#webassembly}
 
-The support file for WebAssembly has been moved to `lib/wasm` from `misc/wasm`.
+The support files for WebAssembly have been moved to `lib/wasm` from `misc/wasm`.

src/cmd/internal/moddeps/moddeps_test.go

@@ -286,12 +286,11 @@ func makeGOROOTCopy(t *testing.T) string {
 			}
 			perm = info.Mode() & os.ModePerm
 
-			// dup symlink
+			// Copy the symlink
 			target, err := os.Readlink(src)
 			if err != nil {
 				return err
 			}
-			// create a symlink to the target directory
 			err = os.Symlink(target, dst)
 			if err != nil {
 				return err