correct include guard comment

Change-Id: Ie94573f7c43c834cd636493bed32f07aa792da49
Partially revert: fixincludeguards.sh: sd

Doesn't look this sane...

 commit 3b58ababc566adef48d8ab600489e554c4585b1d
 Author: Thomas Arnhold <thomas@arnhold.org>
 Date:   Wed Oct 23 22:38:46 2013 +0200

    fixincludeguards.sh: sd

Change-Id: Ia6836deaa1982febf71cd8abd89e93ea0a844721