issue #3 adding "commandline" feature

utils/misc.py

@@ -1,6 +1,35 @@
+import argparse
+
 import pytz
 import datetime as dt
 
+
+class CustomFormatter(argparse.RawTextHelpFormatter):
+    def _format_action_invocation(self, action):
+        if not action.option_strings:
+            metavar, = self._metavar_formatter(action, action.dest)(1)
+            return metavar
+        else:
+            parts = []
+            # if the Optional doesn't take a value, format is:
+            #    -s, --long
+            if action.nargs == 0:
+                parts.extend(action.option_strings)
+
+            # if the Optional takes a value, format is:
+            #    -s ARGS, --long ARGS
+            # change to
+            #    -s, --long ARGS
+            else:
+                default = action.dest.upper()
+                args_string = self._format_args(action, default)
+                for option_string in action.option_strings:
+                    # parts.append('%s %s' % (option_string, args_string))
+                    parts.append('%s' % option_string)
+                parts[-1] += ' %s' % args_string
+            return ', '.join(parts)
+
+
 def possible_timezones(tz_offset, common_only=True):
     # pick one of the timezone collections
     timezones = pytz.common_timezones if common_only else pytz.all_timezones