- remove default=None with argparse is redundant since it's the

default value already.
- use the argparse.ArgumentDefaultsHelpFormatter as the
  formatter_class, to print out automatically the default values

tools/pelican_import.py

@@ -234,7 +234,8 @@ def fields2pelican(fields, out_markup, output_path, dircat=False):
 def main():
     parser = argparse.ArgumentParser(
         description="Transform feed, Wordpress or Dotclear files to rst files."
-            "Be sure to have pandoc installed")
+            "Be sure to have pandoc installed",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
 
     parser.add_argument(dest='input', help='The input file to read')
     parser.add_argument('--wpfile', action='store_true', dest='wpfile',