Land #10683, to_s fixes for Heartbleed

modules/auxiliary/scanner/ssl/openssl_heartbleed.rb

@@ -219,7 +219,7 @@ class MetasploitModule < Msf::Auxiliary
 
         1.upto(leak_count) do |count|
           vprint_status("Leaking heartbeat response ##{count}")
-          bleeded << (bleed || '')
+          bleeded << bleed.to_s
         end
 
         loot_and_report(bleeded)
@@ -509,7 +509,7 @@ class MetasploitModule < Msf::Auxiliary
 
   # Stores received data
   def loot_and_report(heartbeat_data)
-    if heartbeat_data.nil? || heartbeat_data.empty?
+    if heartbeat_data.to_s.empty?
       vprint_error("Looks like there isn't leaked information...")
       return
     end