server/download.go: Fix a typo in log

Signed-off-by: Jitang Lei <leijitang@outlook.com>

server/download.go

@@ -235,7 +235,7 @@ func (b *blobDownload) run(ctx context.Context, requestURL *url.URL, opts *regis
 
 			newOpts.CheckRedirect = func(req *http.Request, via []*http.Request) error {
 				if len(via) > 10 {
-					return errors.New("maxium redirects exceeded (10) for directURL")
+					return errors.New("maximum redirects exceeded (10) for directURL")
 				}
 
 				// if the hostname is the same, allow the redirect