urlstore: Accept "200 OK" in addition to "206 Partial Content".

Some servers seem to return 200 OK when range header covers entire
file.  If the content is wrong we will detect later so there is no
harm in accepting either response.

License: MIT
Signed-off-by: Kevin Atkinson <k@kevina.org>

filestore/fsrefstore.go

@@ -216,9 +216,9 @@ func (f *FileManager) readURLDataObj(c *cid.Cid, d *pb.DataObj) ([]byte, error)
 	if err != nil {
 		return nil, &CorruptReferenceError{StatusFileError, err}
 	}
-	if res.StatusCode != http.StatusPartialContent {
+	if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusPartialContent {
 		return nil, &CorruptReferenceError{StatusFileError,
-			fmt.Errorf("expected HTTP 206 got %d", res.StatusCode)}
+			fmt.Errorf("expected HTTP 200 or 206 got %d", res.StatusCode)}
 	}
 
 	outbuf := make([]byte, d.GetSize_())