From 8d7b06efd1cd97dba2ec50ed74079055fcd2898f Mon Sep 17 00:00:00 2001
From: Valentin Lorentz <progval@gmail.com>
Date: Tue, 13 Aug 2013 19:19:54 +0000
Subject: [PATCH] utils.str.format: Replace %u with '' instead of '<>' if URL
 is empty.

---
 src/utils/str.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/utils/str.py b/src/utils/str.py
index ccce229f7..66f5ee01f 100644
--- a/src/utils/str.py
+++ b/src/utils/str.py
@@ -511,7 +511,11 @@ def format(s, *args, **kwargs):
             return timeElapsed(args.pop())
         elif char == 'u':
             import supybot.conf as conf
-            return conf.supybot.reply.format.url() % args.pop()
+            url = args.pop()
+            if url:
+                return conf.supybot.reply.format.url() % url
+            else:
+                return ''
         elif char == 'v':
             args.pop()
             return ''