ircbot.rb: make #mode()'s third argument optional

diff --git a/lib/rbot/ircbot.rb b/lib/rbot/ircbot.rb
index 3cd41d2e62512ebb42441015777ec2df5950a5b0..8be9cb5ff5b656d1e513fc1af8d746c3ce31eaba 100644 (file)
--- a/lib/rbot/ircbot.rb
+++ b/lib/rbot/ircbot.rb
@@ -1184,7 +1184,7 @@ class Bot
   end
 
   # changing mode
-  def mode(channel, mode, target)
+  def mode(channel, mode, target=nil)
     sendq "MODE #{channel} #{mode} #{target}", channel, 2
   end