Fix typo

Author: jvazquez-r7

modules/exploits/windows/browser/hp_loadrunner_writefilestring.rb

@@ -36,8 +36,8 @@ def initialize(info={})
 				embedded in a dll, which is later loaded through the Init() method from the
 				lrMdrvService control, by abusing an insecure LoadLibrary call. This module has
 				been tested successfully on IE8 on Windows XP. Virtualization based on the Low
-				Integrity Process, on Windows Vista and 7, will stop this stop this module because
-				the DLL will be dropped to a virtualized folder, which isn't used by LoadLibrary.
+				Integrity Process, on Windows Vista and 7, will stop this module because the DLL
+				will be dropped to a virtualized folder, which isn't used by LoadLibrary.
 			},
 			'License'        => MSF_LICENSE,
 			'Author'         =>