all.sh: improve wrapper error reporting
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 20ca899..b1261bf 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -55,7 +55,7 @@
fi
fi
-if [ "$#" -ne 4 -o "$1" != '--seed' -o "$3" != '--keep-going' ]; then
+if [ "$#" -ne 4 -o "${1:-unset}" != '--seed' -o "${3:-unset}" != '--keep-going' ]; then
echo "This invocation is not supported by the transitional wrapper." >&2
echo "See the comments at the top of $0." >&2
exit 1