From dd3ff7f89bdf509083cc18931b9f8e941490fbca Mon Sep 17 00:00:00 2001
From: Mike Koss <mckoss@startpad.org>
Date: Fri, 27 Apr 2012 04:16:28 -0700
Subject: [PATCH] fix bug when no help text given for option - wrap returns
 empty list

---
 tornado/options.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tornado/options.py b/tornado/options.py
index 5d20dcbf..05e6f6f8 100644
--- a/tornado/options.py
+++ b/tornado/options.py
@@ -184,7 +184,7 @@ def print_help(file=sys.stdout):
             if option.default is not None and option.default != '':
                 description += " (default %s)" % option.default
             lines = textwrap.wrap(description, 79 - 35)
-            if len(prefix) > 30:
+            if len(prefix) > 30 or len(lines) == 0:
                 lines.insert(0, '')
             print >> file, "  --%-30s %s" % (prefix, lines[0])
             for line in lines[1:]: