Bug 23571: (QA follow-up) Add missing newline in warning

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

misc/cronjobs/fines.pl

@@ -84,7 +84,7 @@ try {
 }
 catch {
     my $message = "Skipping execution of $0 ($_)";
-    print STDERR $message
+    print STDERR "$message\n"
         if $verbose;
     cronlogaction( $message );
     exit;