[epiphany] uri-helpers: Add a comment

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 5a2c36441a71a784f31ec65ac35dc9aed9824d57
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Dec 18 15:19:02 2016 -0600

    uri-helpers: Add a comment

 lib/ephy-uri-helpers.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/ephy-uri-helpers.c b/lib/ephy-uri-helpers.c
index 2ce36db..8d913ef 100644
--- a/lib/ephy-uri-helpers.c
+++ b/lib/ephy-uri-helpers.c
@@ -259,7 +259,7 @@ ephy_remove_tracking_from_uri (const char *uri_string)
 char *
 ephy_uri_decode (const char *uri_string)
 {
-  static const guint MAX_DOMAIN_LENGTH = 255;
+  static const guint MAX_DOMAIN_LENGTH = 255; /* RFC 1034, section 3.1 */
   static UIDNA *idna = NULL;
   static GMutex idna_creation_mutex;
   SoupURI *uri;