this saves various trouble.
this syntax is supported since git 1.7.0.

Change-Id: I5bbc31c2ba01e7ec0129bf45b9f704c380bf11a3
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Reviewed-by: Simo Fält <simo.falt@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>