refactor: s/readSeeker/readSeek/

internal/testutil/archive.go

@@ -37,7 +37,7 @@ func (a *TestArchive) Fetch(pkgName string) (io.ReadSeekCloser, *archive.Package
 		SHA256:  pkg.Hash,
 		Arch:    pkg.Arch,
 	}
-	return ReadSeekerNopCloser(bytes.NewReader(pkg.Data)), info, nil
+	return ReadSeekNopCloser(bytes.NewReader(pkg.Data)), info, nil
 }
 
 func (a *TestArchive) Exists(pkg string) bool {

internal/testutil/nopcloser.go

@@ -4,16 +4,16 @@ import (
 	"io"
 )
 
-// readSeekerNopCloser is an io.Reader that does nothing on Close, and
+// readSeekNopCloser is an io.Reader that does nothing on Close, and
 // seeks to the beginning of the stream on Seek.
 // It is an extension of io.NopCloser that also implements io.Seeker.
-type readSeekerNopCloser struct {
+type readSeekNopCloser struct {
 	io.ReadSeeker
 }
 
 // Close does nothing.
-func (readSeekerNopCloser) Close() error { return nil }
+func (readSeekNopCloser) Close() error { return nil }
 
-func ReadSeekerNopCloser(r io.ReadSeeker) io.ReadSeekCloser {
-	return readSeekerNopCloser{r}
+func ReadSeekNopCloser(r io.ReadSeeker) io.ReadSeekCloser {
+	return readSeekNopCloser{r}
 }