airo : Print of firmware version

For the firmware version 5.30.17 the log file shows:
Firmware version 5.30.11

The variable softSubVer is binary.
Signed-off-by: NMatthieu CASTET <castet.matthieu@free.fr>
Signed-off-by: NJose Alonso <joalonsof@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/airo.c

@@ -2876,7 +2876,7 @@ static struct net_device *_init_airo_card( unsigned short irq, int port,
 	ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
 	ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
 
-	airo_print_info(dev->name, "Firmware version %x.%x.%02x",
+	airo_print_info(dev->name, "Firmware version %x.%x.%02d",
 	                ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
 	                (le16_to_cpu(cap_rid.softVer) & 0xFF),
 	                le16_to_cpu(cap_rid.softSubVer));