netcmd: properly show command name in show help

This comes up if a user ends up typing something wrong, and it incorrectly showed only part of the command under Usage:

Signed-off-by: Rob van der Linde <rob@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

diff --git a/python/samba/netcmd/__init__.py b/python/samba/netcmd/__init__.py
index beb825af075134bfcd2a0ce45636a9e88cc76000..3e1f1c45aef4de035c750740afd62579a7525eac 100644 (file)
--- a/python/samba/netcmd/__init__.py
+++ b/python/samba/netcmd/__init__.py
@@ -105,7 +105,7 @@ class Command(object):
         self._set_files(outf, errf)
 
     def usage(self, prog=None):
-        parser, _ = self._create_parser(prog)
+        parser, _ = self._create_parser(prog or self.command_name)
         parser.print_usage()
 
     def _print_error(self, msg, evalue=None, klass=None):