Corrected typo in filename.

Hi all,

System Fedora 5.2.9-200.fc30.x86_64
ClamAv 0.101.4


I wonder why a DNF update changes my customized /usr/lib/systemd/clam@.service file.

Background:
I had to add/change the following configurations in above mentioned file to overcome
a timeout issue.

TimeOutSec = 600
#Restart = on-failure        # to avoid restarting on timeout failure

IMHO an update should not change the service files, but  instead install a new version of this file(s)
with an appropriate extension. In addition DNF update should inform about this with a warning.

Kind reagrds,
Herbert