Fixed bad comments and some cosmetics

Hsbot/Plugin/Duck.hs

@@ -51,7 +51,7 @@ $(makeAcidic ''StatDB ['getDuckStats, 'updateScore])
 duck :: PluginId
 duck = PluginId
     { pluginName = "duck"
-    , pluginEp   = theDuck $ DuckArgs { duckChannel = "", duckFreq = 10 } }
+    , pluginEp   = theDuck DuckArgs { duckChannel = "", duckFreq = 10 } }
 
 data DuckArgs = DuckArgs
     { duckChannel :: String

Hsbot/Plugin/Ping.hs

@@ -11,12 +11,13 @@ import Prelude hiding (catch)
 import Hsbot.Message
 import Hsbot.Types
 
+-- | The ping plugin identity
 ping :: PluginId
 ping = PluginId
     { pluginName = "ping"
     , pluginEp   = thePing }
 
--- | The IrcPlugin monad main function
+-- | An IRC plugin that answer PING requests
 thePing :: Plugin (Env IO) ()
 thePing = forever $ readMsg >>= eval
   where