added some explanation to example.conf

Change-Id: I859b48c70008a4961c87cd23c16ce9573bf8a18a
Signed-off-by: SJ <sj@acts.hu>

etc/example.conf

@@ -41,6 +41,7 @@ number_of_worker_processes=2
 ; max. number of parallel connections piler-smtp can handle.
 ; Important! If you want to change this value, then you must first
 ; stop piler-smtp, change the value, then start piler-smtp.
+; I don't suggest to go under 10 or above 1000.
 max_connections=64
 
 ; number of processed emails per each piler process

src/piler-smtp.c

@@ -385,10 +385,6 @@ int main(int argc, char **argv){
 
    initialise_configuration();
 
-   // The max_connections variable mustn't be affected by a reload!
-   if(cfg.max_connections < 10) cfg.max_connections = 10;
-   if(cfg.max_connections > 10000) cfg.max_connections = 10000;
-
    listenerfd = create_listener_socket(cfg.listen_addr, cfg.listen_port);
    if(listenerfd == -1){
       syslog(LOG_PRIORITY, "create_listener_socket() error");