Merge pull request #7 from guppy/master

Added missing usage details.

crussh.py

@@ -31,7 +31,7 @@ class CruSSHConf:
 	### Signal Hooks ###
 	def save_hook(self, discard, save_func):
 		self.MainWin.destroy()
-		if save_func != None:
+		if save_func is not None:
 			save_func(self.Config)
 
 	def font_hook(self, fontbutton):
@@ -87,7 +87,7 @@ class CruSSHConf:
 
 	# we'll wire up a supplied save_func that takes the Config dict as an argument.
 	def __init__(self, config=None, save_func=None):
-		if config != None:
+		if config is not None:
 			self.Config = config
 
 		self.initGUI(save_func)
@@ -170,7 +170,7 @@ class CruSSH:
 		icon_list = []
 		if theme.has_icon("terminal"):
 			icon = theme.lookup_icon("terminal", 128, flags=gtk.ICON_LOOKUP_USE_BUILTIN)
-				if icon != None:
+			if icon is not None:
 				gtk.window_set_default_icon(icon.load_icon())
 		self.MainWin.set_title("crussh: " + ' '.join(self.Terminals.keys()))
 		self.MainWin.set_role(role="crussh_main_win")
@@ -277,12 +277,15 @@ if __name__ == "__main__":
 	import argparse
 
 	### Parse CLI Args ###
-	parser = argparse.ArgumentParser(description="Connect to multiple servers in parallel.", usage="%(prog)s [OPTIONS] HOST [HOST ...]")
+	parser = argparse.ArgumentParser(
+		description="Connect to multiple servers in parallel.", 
+		usage="%(prog)s [OPTIONS] [--] HOST [HOST ...]",
+		epilog="* NOTE: You can pass options to ssh if you add '--' before your list of hosts")
 	(args, hosts) = parser.parse_known_args()
 
 	if len(hosts) == 0:
 		parser.print_usage()
-		sys.exit(1)
+		parser.exit(2)
 
 	if "--" in hosts:
 		offset = hosts.index("--") + 1