Update simple_backdoors_exec.rb

modules/exploits/multi/http/simple_backdoors_exec.rb

@@ -14,7 +14,7 @@ class Metasploit3 < Msf::Exploit::Remote
     super(update_info(info,
       'Name'           => 'Simple Backdoor Shell Remote Code Execution',
       'Description'    => %q{
-          This module exploits unauthenticated simple web backdoor shells by leveraging the
+        This module exploits unauthenticated simple web backdoor shells by leveraging the
         common backdoor shell's CMD parameter  to execute commands. The SecLists project of
         Daniel Miessler and Jason Haddix has a lot of samples for this kind of backdoor shells
         which is categorized under Payloads.