nsd.conf: fix for the current log format

New nsd 4.3.5 log format:

|  [2021-03-05 05:25:14.562] nsd[160800]: info: axfr for example.com. from 192.35.168.32 refused, no acl matches
|  [2021-03-06 05:24:33.223] nsd[356033]: info: axfr for localhost. from 192.35.168.160 refused, no acl matches
|  [2021-03-07 05:23:26.641] nsd[547893]: info: axfr for example.com. from 192.35.168.64 refused, no acl matches
|  [2021-03-08 05:18:54.067] nsd[739606]: info: axfr for example.com. from 192.35.168.32 refused, no acl matches

config/filter.d/nsd.conf

@@ -23,9 +23,9 @@ _daemon = nsd
 # Values:  TEXT
 
 failregex =  ^%(__prefix_line)sinfo: ratelimit block .* query <HOST> TYPE255$
-             ^%(__prefix_line)sinfo: .* <HOST> refused, no acl matches\.$
+             ^%(__prefix_line)sinfo: .* <HOST> refused, no acl matches
 
 ignoreregex =
 
 datepattern = {^LN-BEG}Epoch
-              {^LN-BEG}
+              {^LN-BEG}