fix typo

Author: jvazquez-r7

modules/exploits/windows/browser/java_cmm.rb

@@ -27,7 +27,7 @@ def initialize( info = {} )
 				and March of 2013. The vulnerability affects Java version 7u15 and earlier and 6u41
 				and earlier and has been tested successfully on Windows XP SP3 and Windows 7 SP1
 				systems. This exploit doesn't bypass click-to-play, so the user must accept the java
-				warning in order tu run the malicious applet.
+				warning in order to run the malicious applet.
 			},
 			'License'       => MSF_LICENSE,
 			'Author'        =>