[PATCH] rcutorture: Add missing - to `--do-allmodconfig` in usage

[Paul Menzel <pmenzel@xxxxxxxxxxxxx>]

The usage currently lists `--doallmodconfig`, resulting in:

    $ tools/testing/selftests/rcutorture/bin/torture.sh --doallmodconfig
    Unknown argument --doallmodconfig
    […]

Add the missing dash for `--do-allmodconfig`.

Fixes: a115a775a8d5 ("torture: Add "make allmodconfig" to torture.sh")
Signed-off-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
---
 tools/testing/selftests/rcutorture/bin/torture.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index eae88aacca2a..3adcc83dd55d 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -72,7 +72,7 @@ usage () {
 	echo "       --configs-locktorture \"config-file list w/ repeat factor (10*LOCK01)\""
 	echo "       --configs-scftorture \"config-file list w/ repeat factor (2*CFLIST)\""
 	echo "       --doall"
-	echo "       --doallmodconfig / --do-no-allmodconfig"
+	echo "       --do-allmodconfig / --do-no-allmodconfig"
 	echo "       --do-clocksourcewd / --do-no-clocksourcewd"
 	echo "       --do-kasan / --do-no-kasan"
 	echo "       --do-kcsan / --do-no-kcsan"
-- 
2.34.1