iio:magnetometer:mag3110: Fix output of decimal digits in show_int_plus_micros()

need to print leading zeros, hence "%d.%06d"
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/magnetometer/mag3110.c

@@ -106,7 +106,7 @@ static ssize_t mag3110_show_int_plus_micros(char *buf,
 
 	while (n-- > 0)
 		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"%d.%d ", vals[n][0], vals[n][1]);
+			"%d.%06d ", vals[n][0], vals[n][1]);
 
 	/* replace trailing space by newline */
 	buf[len - 1] = '\n';