Fix crash on "!" message.

diff --git a/plomlombot.py b/plomlombot.py
index 35d3c2fbded5a454f974df98ac24dcec362a8ed0..ac78be9fa88d967fd5e71b6cbd37bfa710c17787 100755 (executable)
--- a/plomlombot.py
+++ b/plomlombot.py
@@ -488,7 +488,7 @@ class Session:
                         notice("maximum number of urls to parse per message "
                                "reached")
                         break
-            if "!" == msg[0]:
+            if "!" == msg[0] and len(tokens) > 1:
                 tokens = msg[1:].split()
                 argument = str.join(" ", tokens[1:])
                 handle_command(tokens[0], argument, notice, target, self)