minor golint fixes

cmd/crawl/crawl.go

@@ -99,7 +99,7 @@ func (h *warcSaveHandler) Handle(c *crawl.Crawler, u string, depth int, resp *ht
 	return extractLinks(c, u, depth, resp, err)
 }
 
-func NewSaveHandler(w *warc.Writer) crawl.Handler {
+func newWarcSaveHandler(w *warc.Writer) crawl.Handler {
 	info := strings.Join([]string{
 		"Software: crawl/1.0\r\n",
 		"Format: WARC File Format 1.0\r\n",
@@ -206,7 +206,7 @@ func main() {
 	w := warc.NewWriter(outf)
 	defer w.Close()
 
-	saver := NewSaveHandler(w)
+	saver := newWarcSaveHandler(w)
 
 	crawler, err := crawl.NewCrawler(*dbPath, seeds, scope, crawl.FetcherFunc(fetch), crawl.NewRedirectHandler(saver))
 	if err != nil {

crawler.go

@@ -319,6 +319,7 @@ func (c *Crawler) Run(concurrency int) {
 	wg.Wait()
 }
 
+// Close the database and release resources associated with the crawler state.
 func (c *Crawler) Close() {
 	c.db.Close()
 }

warc/warc.go

@@ -23,7 +23,7 @@ var (
 	}
 )
 
-// A WARC header. Header field names are case-sensitive.
+// Header for a WARC record. Header field names are case-sensitive.
 type Header map[string]string
 
 // Set a header to the specified value. Multiple values are not