Otherwise the test fails because specifier_runtime() returns -ENOTSUP
when XDG_RUNTIME_DIR is not set.
assert_se(setenv("USER", "root", 1) == 0);
assert_se(setenv("HOME", "/root", 1) == 0);
assert_se(setenv("USER", "root", 1) == 0);
assert_se(setenv("HOME", "/root", 1) == 0);
+ assert_se(setenv("XDG_RUNTIME_DIR", "/run/user/1/", 1) == 0);
assert_se(u = unit_new(m, sizeof(Service)));
assert_se(unit_add_name(u, "blah.service") == 0);
assert_se(u = unit_new(m, sizeof(Service)));
assert_se(unit_add_name(u, "blah.service") == 0);