Description of problem:
The systemd script for postgrey is broken.

Version-Release number of selected component (if applicable):
postgrey-1.34-10.fc20.noarch

How reproducible:
every time

Steps to Reproduce:
1. systemctl start postgrey
2.
3.

Actual results:
postgrey does not start, with a complaint about line 15 in postgrey.service

Expected results:
postgrey should start


Additional info:
The line in postgrey.service which reads
 --greylist-text="Greylisted for %%s seconds"

should probably read
 "--greylist-text=Greylisted for %%s seconds" \

instead. Firstly, the backslash is needed as there is more of the command on the following line. Secondly, apparently systemd does not use a shell for command lines (reasonable); and consequently has its own rules for processing quotes in commands (an inevitable consequence, but unfortunate).