Allow 'help' command to print help for multiple commands at once

deluge/ui/console/commands/help.py

@@ -49,21 +49,19 @@ class Command(BaseCommand):
         self._commands = self.console._commands
         deferred = defer.succeed(True)
         if args:
-            if len(args) > 1:
-                self.console.write(usage)
-                return deferred
+            for arg in args:
                 try:
-                cmd = self._commands[args[0]]
+                    cmd = self._commands[arg]
                 except KeyError:
                     self.console.write("{!error!}Unknown command %r" % args[0])
-                return deferred
+                    continue
                 try:
                     parser = cmd.create_parser()
                     self.console.write(parser.format_help())
                 except AttributeError, e:
                     self.console.write(cmd.__doc__ or 'No help for this command')
+                self.console.write(" ")
         else:
-            max_length = max( len(k) for k in self._commands)
             self.console.set_batch_write(True)
             for cmd in sorted(self._commands):
                 self.console.write("{!info!}" + cmd + "{!input!} - " + self._commands[cmd].__doc__ or '')