tests/runall: Use `` instead of $(...), because of legacy systems
tests/runall: Use `` instead of $(...), because of legacy systems

Signed-off-by: Gergely Nagy <6780fac3b38619ac20422286e4110a70dbba2203@balabit.hu>

algernon/libmongo-client,algernon/libmongo-client,algernon/libmongo-client