# HG changeset patch
# User Ingo Bormuth <mail@ibormuth.de>
# Date 1322397222 -3600
# Node ID de8602f8d9bb7dd1487a72858ad07bd423c064e7
# Parent  9345ea6af3b2dbe2d77e0ff3f9e9422bb0d83c1d
Make trim properly handle nil as an argument

diff -r 9345ea6af3b2 -r de8602f8d9bb env/util/trim.lua
--- a/env/util/trim.lua	Sun Nov 27 13:31:05 2011 +0100
+++ b/env/util/trim.lua	Sun Nov 27 13:33:42 2011 +0100
@@ -1,3 +1,6 @@
 function util.trim(string)
+  if string == nil then
+    return string
+  end
   return (string:gsub("^%s*", ""):gsub("%s*$", ""):gsub("%s+", " "))
-end
\ No newline at end of file
+end