reviewed coverage report. remove some dead code. add a few comments to areas of code unlikely to hit.

src/docrawler/docrawler.go

@@ -102,12 +102,7 @@ func crawlItem(item *httpItem, rchan chan<- *httpItem) {
 	}
 
 	// parse links
-	title, links := parseLinks(text) // TODO remove error from parseLinks, not needed
+	title, links := parseLinks(text)
-	if err != nil {
-		item.linkType = tBroken
-		rchan <- item
-		return
-	}
 	item.title = title
 
 	// walk links and add them as children to the current item

src/docrawler/fetch.go

@@ -74,11 +74,13 @@ func fetchPage(item *httpItem) (string, error) {
 	// GET the url
 	resp, err := http.Get(item.url.String())
 	if err != nil {
+		// NOTE http.Head was already successful, this is highly likely to succeed
 		return "", err
 	}
 
 	// check response code
 	if resp.StatusCode != http.StatusOK {
+		// NOTE we already got StatusOK for http.Head, this is highly likely to succeed
 		return "", errFetchError
 	}