[PATCH v2 04/28] binman: Give a sensible error if no command is given

[Simon Glass]

At present if 'binman' is typed on the command line, a strange error about
a missing argument is displayed. Fix this.

These does not seem to be standard way to add the 'required' argument in
all recent Python versions, so set it manually.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 tools/binman/cmdline.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/binman/cmdline.py b/tools/binman/cmdline.py
index bb4d9d1288b..c007d0a036d 100644
--- a/tools/binman/cmdline.py
+++ b/tools/binman/cmdline.py
@@ -37,6 +37,7 @@ controlled by a description in the board device tree.'''
         '3=info, 4=detail, 5=debug')
 
     subparsers = parser.add_subparsers(dest='cmd')
+    subparsers.required = True
 
     build_parser = subparsers.add_parser('build', help='Build firmware image')
     build_parser.add_argument('-a', '--entry-arg', type=str, action='append',
-- 
2.29.0.rc2.309.g374f81d7ae-goog