kconfig: add help messages for --help (-h) and --silent (-s)

Add missing options and make the help message more readable.

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

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index aac76ac..9ebc1ac 100644 (file)
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -496,9 +496,13 @@ static struct option long_opts[] = {
 
 static void conf_usage(const char *progname)
 {
-
-       printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
-       printf("[option] is _one_ of the following:\n");
+       printf("Usage: %s [options] <kconfig-file>\n", progname);
+       printf("\n");
+       printf("Generic options:\n");
+       printf("  -h, --help              Print this message and exit.\n");
+       printf("  -s, --silent            Do not print log.\n");
+       printf("\n");
+       printf("Mode options:\n");
        printf("  --listnewconfig         List new options\n");
        printf("  --helpnewconfig         List new options and help text\n");
        printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");