fix bug: argument in print_real_text is a list, not a string

src/history_window.py

@@ -284,7 +284,7 @@ def add_new_line(self, contact_name, tim, kind, show, message):
 
 		message = message + '\n'
 		if tag_msg:
-			self.history_textview.print_real_text(message, tag_msg)
+			self.history_textview.print_real_text(message, [tag_msg])
 		else:
 			self.history_textview.print_real_text(message)