Bug#865528: don't escape dash (\x2d) when logging

[Michael Biebl]

> Am 22.06.2017 um 16:03 schrieb 積丹尼 Dan Jacobson <jidanni at jidanni.org>:
> 
> It turns out just plain dash works fine.
> 
> $ echo systemctl status dev-disk-by\x2dpath-pci\x2d0000:00:1f.1\x2data\x2d1.device|sed s/x2/-/g|sh -x
> + systemctl status dev-disk-by-dpath-pci-d0000:00:1f.1-data-d1.device
> ● dev-disk-by-dpath-pci-d0000:00:1f.1-data-d1.device
>   Loaded: loaded
>   Active: inactive (dead)

Ahem, no it doesn't work fine