Fix demo -h didn't work with existing demo, and

required nuke to read the help

Author: techtonik

demo.py

@@ -149,17 +149,18 @@ def main():
     except getopt.GetoptError, e:
         usage(str(e))
         return 1
+    for opt, arg in opts:
+        if opt == '-h':
+            usage()
+            return 0
 
     home = os.path.abspath('demo')
     nuke = args and args[0] == 'nuke'
     if not os.path.exists(home) or nuke:
         backend = 'anydbm'
         template = 'classic'
         for opt, arg in opts:
-            if opt == '-h':
-                usage()
-                return 0
-            elif opt == '-t':
+            if opt == '-t':
                 template = arg
             elif opt == '-b':
                 backend = arg