This fixes #40 by defining the buf variable

git-svn-id: file:///home/svn/framework3/trunk@4486 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/windows/isapi/nsiislog_post.rb

@@ -1,5 +1,5 @@
 ##
-# $Id:$
+# $Id$
 ##
 
 ##
@@ -83,6 +83,8 @@ class Exploits::Windows::Isapi::IIS_NSIISLOG_Overflow < Msf::Exploit::Remote
 	def exploit_target(target)
 
 		vars = {}
+		buf  = ''
+		
 		%w{
 			date time c-dns cs-uri-stem c-starttime
 			x-duration c-rate c-status c-playerid c-playerversion