# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1373355490 -7200
# Node ID 59657e03c25c5ed397ef071a75c1c14c3ad01e81
# Parent  bfde5e5318d780d23c6e9560f93fc56644af544b
mod_lastlog: Make the command show a help message instead of a traceback when no user given

diff -r bfde5e5318d7 -r 59657e03c25c mod_lastlog/mod_lastlog.lua
--- a/mod_lastlog/mod_lastlog.lua	Mon Jul 08 12:26:19 2013 +0200
+++ b/mod_lastlog/mod_lastlog.lua	Tue Jul 09 09:38:10 2013 +0200
@@ -48,6 +48,10 @@
 end
 
 function module.command(arg)
+	if not arg[1] or arg[1] == "--help" then
+		require"util.prosodyctl".show_usage([[mod_lastlog <user@host>]], [[Show when user last logged in or out]]);
+		return 1;
+	end
 	local user, host = jid.prepped_split(table.remove(arg, 1));
 	require"core.storagemanager".initialize_host(host);
 	local lastlog = assert(datamanager.load(user, host, "lastlog"));