Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pkg/util/util_url.go

@@ -0,0 +1,15 @@
+package util
+
+import "net/url"
+
+// URLUserPassword is a replacement/wrapper around url.UserPassword that treats empty string arguments as not specified.
+// If no user or password is specified, it returns nil (which serializes in url.URL to "").
+func URLUserPassword(user, password string) *url.Userinfo {
+	if len(password) > 0 {
+		return url.UserPassword(user, password)
+	} else if len(user) > 0 {
+		return url.User(user)
+	}
+
+	return nil
+}