correct small typos left from review

internal/manifest/report_test.go

@@ -40,7 +40,7 @@ var sampleFile = fsutil.Entry{
 	Link:   "",
 }
 
-var sampleSymLink = fsutil.Entry{
+var sampleSymlink = fsutil.Entry{
 	Path:   "/base/example-link",
 	Mode:   fs.ModeSymlink | 0777,
 	SHA256: "example-file_hash",
@@ -111,7 +111,7 @@ var reportTests = []struct {
 		}},
 }, {
 	summary: "Regular file link",
-	add:     []sliceAndEntry{{entry: sampleSymLink, slice: oneSlice}},
+	add:     []sliceAndEntry{{entry: sampleSymlink, slice: oneSlice}},
 	expected: map[string]manifest.ReportEntry{
 		"/example-link": {
 			Path:   "/example-link",

internal/testutil/nopcloser.go

@@ -5,13 +5,14 @@ import (
 )
 
 // readSeekNopCloser is an io.ReadSeeker that does nothing on Close.
-// It is an extension of io.NopCloser that also implements io.Seeker.
 type readSeekNopCloser struct {
 	io.ReadSeeker
 }
 
 func (readSeekNopCloser) Close() error { return nil }
 
+// ReadSeekNopCloser is an extension of io.NopCloser that also implements
+// io.Seeker.
 func ReadSeekNopCloser(r io.ReadSeeker) io.ReadSeekCloser {
 	return readSeekNopCloser{r}
 }

internal/testutil/treedump.go

@@ -33,36 +33,34 @@ func TreeDump(dir string) map[string]string {
 		if finfo.Mode()&fs.ModeSticky != 0 {
 			fperm |= 01000
 		}
-		var resultEntry string
+		var entry string
 		switch ftype {
 		case fs.ModeDir:
 			path = "/" + path + "/"
-			resultEntry = fmt.Sprintf("dir %#o", fperm)
+			entry = fmt.Sprintf("dir %#o", fperm)
 		case fs.ModeSymlink:
 			lpath, err := os.Readlink(fpath)
 			if err != nil {
 				return err
 			}
 			path = "/" + path
-			resultEntry = fmt.Sprintf("symlink %s", lpath)
+			entry = fmt.Sprintf("symlink %s", lpath)
 		case 0: // Regular
 			data, err := os.ReadFile(fpath)
 			if err != nil {
 				return fmt.Errorf("cannot read file: %w", err)
 			}
-			var entry string
 			if len(data) == 0 {
 				entry = fmt.Sprintf("file %#o empty", fperm)
 			} else {
 				sum := sha256.Sum256(data)
 				entry = fmt.Sprintf("file %#o %.4x", fperm, sum)
 			}
 			path = "/" + path
-			resultEntry = entry
 		default:
 			return fmt.Errorf("unknown file type %d: %s", ftype, fpath)
 		}
-		result[path] = resultEntry
+		result[path] = entry
 		if ftype != fs.ModeDir {
 			stat, ok := finfo.Sys().(*syscall.Stat_t)
 			if !ok {
@@ -82,8 +80,7 @@ func TreeDump(dir string) map[string]string {
 
 	// Append identifiers to paths who share an inode e.g. hard links.
 	for i := 0; i < len(inodes); i++ {
-		paths := pathsByInodes[inodes[i]]
-		for _, path := range paths {
+		for _, path := range pathsByInodes[inodes[i]] {
 			result[path] = fmt.Sprintf("%s <%d>", result[path], i+1)
 		}
 	}