[media] bttv: avoid flooding the kernel log when i2c debugging is disabled

When the bttv driver is running without i2c_debug being set, the kernel
log is being flooded with the string ">". This string is really a part of
a debug message that is logged using several substrings protected by a
conditional check.
This patch adds the same conditional check to the leaked substring.
Signed-off-by: NJohn Törnblom <john.tornblom@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/pci/bt8xx/bttv-i2c.c

@@ -173,7 +173,7 @@ bttv_i2c_sendbytes(struct bttv *btv, const struct i2c_msg *msg, int last)
 		if (i2c_debug)
 			pr_cont(" %02x", msg->buf[cnt]);
 	}
-	if (!(xmit & BT878_I2C_NOSTOP))
+	if (i2c_debug && !(xmit & BT878_I2C_NOSTOP))
 		pr_cont(">\n");
 	return msg->len;