From 651479f254b15d0991f4907903f7a8009fbda241 Mon Sep 17 00:00:00 2001
From: Lucas de Vries <lucasdevries@gmail.com>
Date: Thu, 14 Aug 2008 00:22:50 +0200
Subject: [PATCH] awful: don't try to spawn nil or empty commands

---
 lib/awful.lua.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/awful.lua.in b/lib/awful.lua.in
index 79135e03..c034bfd2 100644
--- a/lib/awful.lua.in
+++ b/lib/awful.lua.in
@@ -765,7 +765,9 @@ end
 -- @param cmd The command.
 -- @return The os.execute() return value.
 function spawn(cmd)
-    return os.execute(cmd .. "&")
+    if cmd and cmd ~= "" then
+        return os.execute(cmd .. "&")
+    end
 end
 
 --- Eval Lua code.