delet a char '\'

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2318 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/drivers/include/drivers/serial.h

@@ -68,7 +68,7 @@
 	BIT_ORDER_LSB,    /* LSB first sent */ \
 	NRZ_NORMAL,       /* Normal mode */    \
 	0                                      \
-}                                          \
+}                                                                                 
 
 struct serial_ringbuffer
 {