fix .sh typo on kernel module test that accept the module as first argument

rootfs_overlay/lkmc/seq_file_single_open.sh

@@ -2,7 +2,7 @@
 set -e
 f=/sys/kernel/debug/lkmc_seq_file_single_open
 mod="${1:-seq_file_single_open.ko}"
-[ $# -gt 1] && shift
+[ $# -gt 1 ] && shift
 insmod "$mod" "$@"
 [ "$(cat "$f")" = "$(printf 'ab\ncd\n')" ]
 [ "$(dd if="$f" bs=1 count=3 skip=1)" = "$(printf "b\nc\n")" ]