[PATCH v3 1/5] patman: Fix implicit command inserting

[Simon Glass]

The logic to insert an implicit command has always been a bit broken
but it was masked by another bug fixed in the patch ("patman: Don't
look at sys.argv when parsing settings"). Specifically, imagine that
you're just calling patman like this:

  patman -c1

After the parse_known_args() command then the "-c1" will have been
parsed and we'll have no command. The "rest" variable will be an empty
list. Going into the logic you can see that nargs = 0. The implicit
insertion of send ideally would create an argument list of:
  ['-c1', 'send']
...but it doesn't because argv[:-0] is the same as argv[:0] and that's
an empty list.

Let's fix this little glitch.

Signed-off-by: Douglas Anderson <dianders at chromium.org>
Tested-by: Brian Norris <briannorris at chromium.org>
Reviewed-by: Brian Norris <briannorris at chromium.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 tools/patman/main.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!