Merge pull request #333 from DrDoof/feat/syslog-hostname-port

syslog: send a hostname, allow a port other than 514, and stop the save from dropping the address

rtl837x_common.h

@@ -138,6 +138,7 @@ void print_long(uint32_t a);
 void print_short(uint16_t a);
 void print_byte(uint8_t a);
 void itoa(uint8_t v);
+void itoa_short(uint16_t v);
 void print_sfr_data(void);
 void print_phy_data(void);
 void print_cmd_prompt(void);