make !ping more explanative for noobs

diff-plugin.lua

diff -r 766f4225110b plugins/ping.lua
--- a/plugins/ping.lua  Tue Jan 11 23:35:42 2011 +0100
+++ b/plugins/ping.lua  Fri Feb 04 15:21:45 2011 +0100
@@ -5,8 +5,10 @@
                local jid = command.param;
                if jid then
                        bot.stream:ping(jid, function (time, jid, error)
+                               local kind = "server";
+                               if string.find(jid, "@") then kind = "client";
                                if time then
-                                       command:reply(string.format("Pong from %s in %0.3f seconds", jid, time));
+                                       command:reply(string.format("Pong from XMPP %s %s in %0.3f seconds", kind, jid, time));
                                else
                                        command:reply("Ping failed ("..(error.condition or "unknown reason")..")"..(error.text and (": "..error.text) or ""));
                                end

gistfile2.lua

function riddim.plugins.ping(bot)
        bot.stream:add_plugin("ping");
        bot:hook("commands/ping", function (command)
                local jid = command.param;
                if jid then
                        bot.stream:ping(jid, function (time, jid, error)
                                local kind = "server";
                                if string.find(jid, "@") then kind = "client";
                                if time then
                                        command:reply(string.format("Pong from XMPP %s %s in %0.3f seconds", kind, jid, time));
                                else
                                        command:reply("Ping failed ("..(error.condition or "unknown reason")..")"..(error.text and (": "..error.text) or ""));
                                end
                        end);
                        return true;
                end
                return "pong";
        end);
end