Minor description adjustment

Author: epinna

modules/exploits/unix/http/vmturbo_vmtadmin_exec_noauth.rb

@@ -22,8 +22,8 @@ def initialize(info = {})
           there is no output for the executed command when using the cmd generic payload.
           Port binding payloads are disregarded due to the restrictive firewall settings.
 
-          This module has been tested successfully on VMTurbo Operations Manager 4.5 and
-          VMTurbo Operations Manager 4.6.
+          This module has been tested successfully on VMTurbo Operations Manager versions 4.5 and
+          4.6.
       },
       'Author'      =>
         [