From bcbc4175e2949df6cc05bf8f729207eb5401cbb0 Mon Sep 17 00:00:00 2001
From: Ulf Magnusson <ulfalizer@gmail.com>
Date: Thu, 13 Dec 2012 14:47:49 +0100
Subject: Make _comment() correctly comment an empty line.

---
 kconfiglib.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kconfiglib.py b/kconfiglib.py
index 6c59a38..f068a2c 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -3645,6 +3645,8 @@ def _sep_lines(*args):
 
 def _comment(s):
     """Returns a new string with "# " inserted before each line in 's'."""
+    if not s:
+        return "#"
     return "\n".join(["#" + line for line in s.splitlines()])
 
 def _get_lines(filename):
-- 
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