Update web_system.stpl

Author: ioannidesalex

install/deb/templates/mail/nginx/web_system.stpl

@@ -6,7 +6,7 @@ server {
     root        /var/lib/roundcube;
     index       index.php index.html index.htm;
     access_log /var/log/nginx/domains/%domain%.log combined;
-    error_log /var/log/nginx/domains/%domain%.error.log error;
+    error_log  /var/log/nginx/domains/%domain%.error.log error;
 
     location ~ /\.(?!well-known\/) {
         deny all;