dbghelp: Fix a typo in comment

[Frédéric Delanoy]

Minor thing, but you wanna keep "*/" alignment consistent by
adding a space.

On Tue, May 3, 2016 at 4:01 PM, Andrey Gusev <andrey.goosev at gmail.com> wrote:
> @@ -58,7 +58,7 @@
> /* order from highest-order term to lowest-order term.  UARTs transmit */
> /* characters in order from LSB to MSB.  By storing the CRC this way,  */
> /* we hand it to the UART in the order low-byte to high-byte; the UART */
> -/* sends each low-bit to hight-bit; and the result is transmission bit */
> +/* sends each low-bit to high-bit; and the result is transmission bit */
> /* by bit from highest- to lowest-order term without requiring any bit */
> /* shuffling on our part.  Reception works similarly.                  */

-- 
Frédéric Delanoy