logwatch: Fix unmatched entries from clamav

This - cosmetic - patch fixes the unnecessary unmatched "Activating the newly
loaded database..."-entries introduced with 'clamav 0.103.0'.

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/patches/logwatch/logwatch-7.5.4-clamav_fix_unmatch_entries.patch

@@ -0,0 +1,11 @@
+diff -U 3 a/scripts/services/clamav b/scripts/services/clamav
+--- a/scripts/services/clamav	Fri Sep 21 00:46:14 2020
++++ b/scripts/services/clamav	Mon Dec 25 09:26:26 2020
+@@ -77,6 +77,7 @@
+        ( $ThisLine =~ /Bytecode: Security mode set to /) or
+        ( $ThisLine =~ /^No stats for Database check/ ) or
+        ( $ThisLine =~ /^Received \d+ file descriptor\(s\) from systemd\.$/) or
++       ( $ThisLine =~ /^Activating the newly loaded database.../ ) or
+        0 # This line prevents blame shifting as lines are added above
+        ) {
+        # We do not care about these.