Get rid of trailing whitespace.

Commit generated by command:

find -type f ! -path '*.git*' ! -path '*.png' ! -path '*.ico' ! -path \
    '*.ogg' | xargs -I '{}' sed -i '{}' -e 's/\t*$//g' -e 's/ *$//g'

modules/client_serverlist/serverlist.lua

@@ -50,7 +50,7 @@ function ServerList.add(host, port, protocol, load)
   end
   local widget = g_ui.createWidget('ServerWidget', serverTextList)
   widget:setId(host)
-  
+
   if not load then
     servers[host] = {
       port = port,