wic: Return error code when wic fails to invoke command

Return 1 if command doesn't exist or wic is called without
any commmand.
Return result of invoke_command as wic return code.

Added tests for unsupported command and no command.

Fixed typo in test case test02_createhelp spotted by this fix.

[YOCTO #7856]

(From OE-Core rev: ebd9f7b1da8ed556e98aab4d5f4e81707ac44b27)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/wic b/scripts/wic
index dda72a9c27..a38ecc0b8b 100755
--- a/scripts/wic
+++ b/scripts/wic
@@ -305,7 +305,7 @@ def main(argv):
                 parser.print_help()
                 sys.exit(1)
 
-    hlp.invoke_subcommand(args, parser, hlp.wic_help_usage, subcommands)
+    return hlp.invoke_subcommand(args, parser, hlp.wic_help_usage, subcommands)
 
 
 if __name__ == "__main__":