Add better interface for specifying custom #eol.

lib/msf/core/exploit/pdf.rb

@@ -206,6 +206,10 @@ module Exploit::PDF
     @eol || "\x0d\x0a"
   end
 
+  def eol=(new_eol)
+    @eol = new_eol
+  end
+
   def endobj
     "endobj" << eol
   end

modules/exploits/android/fileformat/adobe_reader_pdf_js_interface.rb

@@ -72,7 +72,7 @@ class Metasploit3 < Msf::Exploit::Remote
   end
 
   def pdf(js)
-    @eol = "\x0d"
+    self.eol = "\x0d"
     @xref = {}
     @pdf = header('1.6')