fix acme-redirect help

src/apps/relay/mainrelay.c

@@ -629,8 +629,8 @@ static char Usage[] = "Usage: turnserver [options]\n"
 " --pidfile <\"pid-file-name\">			File name to store the pid of the process.\n"
 "						Default is /var/run/turnserver.pid (if superuser account is used) or\n"
 "						/var/tmp/turnserver.pid .\n"
-" --acme-redirect <URL>        Redirect ACME, i.e. HTTP GET requests matching '^/.well-known/acme-challenge/(.*)' to '<URL>$1'.\n"
-"                      Default is '', i.e. no special handling for such requests.\n"
+" --acme-redirect <URL>				Redirect ACME, i.e. HTTP GET requests matching '^/.well-known/acme-challenge/(.*)' to '<URL>$1'.\n"
+"						Default is '', i.e. no special handling for such requests.\n"
 " --secure-stun					Require authentication of the STUN Binding request.\n"
 "						By default, the clients are allowed anonymous access to the STUN Binding functionality.\n"
 " --proc-user <user-name>			User name to run the turnserver process.\n"