refactoring changes from sequpgrade (endReturn, ...) and some modernizations

seqs/fail2ban/filter.d/nextcloud.conf

@@ -1,4 +1,4 @@
 [Definition]
 
 failregex = ^.*\"remoteAddr\":\"<HOST>\".*Trusted domain error.*$
-	    ^.*\"remoteAddr\":\"<HOST>\".*Login failed:.*$		 
+	    ^.*\"remoteAddr\":\"<HOST>\".*Login failed:.*$

seqs/fail2ban/jail.d/ip-blacklist.conf

@@ -7,10 +7,10 @@ logpath   = /etc/fail2ban/ip.blacklist
 maxretry  = 0
 findtime  = 600
 # infinite ban
-#bantime   = -1 
+#bantime   = -1
 # 1 day ban
-#bantime   = 24h 
+#bantime   = 24h
 # 2 day ban
-bantime   = 48h 
+bantime   = 48h
 # 10 minute ban
 #bantime   = 10m

seqs/fail2ban/jail.d/nextcloud.conf

@@ -4,4 +4,4 @@ logpath  = /var/nc_data/nextcloud.log
 port     = http,https
 filter   = nextcloud
 maxretry = 3
-bantime  = 24h 
+bantime  = 24h