test_expect_success 'no buffer overflow in lazy_init_name_hash' '
        (
-           test_seq $LAZY_THREAD_COST | sed "s/^/a_/"
-           echo b/b/b
-           test_seq $LAZY_THREAD_COST | sed "s/^/c_/"
-           test_seq 50 | sed "s/^/d_/" | tr "\n" "/"; echo d
+           test_seq $LAZY_THREAD_COST | sed "s/^/a_/" &&
+           echo b/b/b &&
+           test_seq $LAZY_THREAD_COST | sed "s/^/c_/" &&
+           test_seq 50 | sed "s/^/d_/" | tr "\n" "/" && echo d
        ) |
        sed "s/^/100644 $EMPTY_BLOB     /" |
        git update-index --index-info &&