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Subject[PATCH 1/3] kconfig: fix 'invalid option' for help option
Date
scripts/kconfig/conf supports -? option to show the help message.
This is not wired up to Makefile, so nobody would notice this, but
it also shows 'invalid option' message.

$ ./scripts/kconfig/conf -?
./scripts/kconfig/conf: invalid option -- '?'
Usage: ./scripts/kconfig/conf [-s] [option] <kconfig-file>
[option] is _one_ of the following:
--listnewconfig List new options
--helpnewconfig List new options and help text
--oldaskconfig Start a new configuration using a line-oriented program
...

The reason is the '?' is missing in the short option list passed to
getopt_long().

While I fixed this issue, I also changed the option '?' to 'h'.
I prefer -h (or --help, if a long option is also desired).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

scripts/kconfig/conf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 3a98c9e0a7c8..37e17934b67a 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -494,7 +494,7 @@ int main(int ac, char **av)

tty_stdio = isatty(0) && isatty(1);

- while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
+ while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
if (opt == 's') {
conf_set_message_callback(NULL);
continue;
@@ -550,7 +550,7 @@ int main(int ac, char **av)
case yes2modconfig:
case mod2yesconfig:
break;
- case '?':
+ case 'h':
conf_usage(progname);
exit(1);
break;
--
2.27.0
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