support config delimiter in syslog plugin

Signed-off-by: Abderrahmane Benbachir <[email protected]>

lib/fluent/plugin/in_syslog.rb

@@ -110,6 +110,8 @@ def initialize
     # 13 is the default value of rsyslog and syslog-ng
     desc 'The default PRI value (0 - 191 are available)'
     config_param :default_priority, :integer, default: 13
+    desc 'The delimiter value \n'
+    config_param :delimiter, :string, default: "" # syslog family add "\n" to each message
 
     def configure(conf)
       super
@@ -251,7 +253,7 @@ def listen(callback)
         SocketUtil::UdpHandler.new(@usock, log, @message_length_limit, callback, @resolve_hostname)
       else
         # syslog family add "\n" to each message and this seems only way to split messages in tcp stream
-        Coolio::TCPServer.new(@bind, @port, SocketUtil::TcpHandler, log, "\n", callback, @resolve_hostname)
+        Coolio::TCPServer.new(@bind, @port, SocketUtil::TcpHandler, log, @delimiter, callback, @resolve_hostname)
       end
     end