out_mail.rb in fluent-plugin-mail-0.2.2

- old
+ new

@@ -15,11 +15,11 @@
   config_param :tag_key,              :string,  :default => 'tag'
   config_param :host,                 :string
   config_param :port,                 :integer, :default => 25
   config_param :domain,               :string,  :default => 'localdomain'
   config_param :user,                 :string,  :default => nil
-  config_param :password,             :string,  :default => nil
+  config_param :password,             :string,  :default => nil, :secret => true
   config_param :from,                 :string,  :default => 'localhost@localdomain'
   config_param :to,                   :string,  :default => ''
   config_param :cc,                   :string,  :default => ''
   config_param :bcc,                  :string,  :default => ''
   config_param :subject,              :string,  :default => 'Fluent::MailOutput plugin'
@@ -98,10 +98,10 @@
 
   # The old `key=value` format for old version compatibility
   def create_key_value_message(tag, time, record)
     values = []
 
-    values << @out_keys.map do |key|
+    values = @out_keys.map do |key|
       case key
       when @time_key
         format_time(time, @time_format)
       when @tag_key
         tag