diff --git a/uart.cpp b/uart.cpp
index 553aaa7..447e918 100644
--- a/uart.cpp
+++ b/uart.cpp
@@ -5,23 +5,27 @@ File:     $Id: uart.c,v 1.15.2.4 2015/09/05 18:33:32 peter Exp $
 Software: AVR-GCC 4.x
 Hardware: any AVR with built-in UART,
 License:  GNU General Public License
-          

+
+
 DESCRIPTION:
     An interrupt is generated when the UART has finished transmitting or
     receiving a byte. The interrupt handling routines use circular buffers
     for buffering received and transmitted data.
-    

+
+
     The UART_RX_BUFFER_SIZE and UART_TX_BUFFER_SIZE variables define
     the buffer size in bytes. Note that these variables must be a
     power of 2.
-    

+
+
 USAGE:
     Refere to the header file uart.h for a description of the routines.
     See also example test_uart.c.
 
 NOTES:
     Based on Atmel Application Note AVR306
-                    

+
+
 LICENSE:
     Copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
 
@@ -34,7 +38,8 @@ LICENSE:
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
-                        

+
+
 *************************************************************************/
 #include "uart.h"
 #include <avr/interrupt.h>
diff --git a/uart.h b/uart.h
index ab10f56..208bf52 100644
--- a/uart.h
+++ b/uart.h
@@ -20,7 +20,7 @@ LICENSE:
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
-    
+
 ************************************************************************/
 
 /**