fix(ll-init): make the no-arguments check reachable

[chennaji9]

What does this PR do?

parse_args() in ll-init appended the terminating nullptr unconditionally:

for (int i = 1; i < argc; ++i) {
    args.emplace_back(argv[i]);
}
args.emplace_back(nullptr);

so running ll-init with no arguments produced {nullptr}, never an empty vector. The if (args.empty()) guards in both callers — delegate_run() ("no arguments provided for delegate run") and run_init() ("no arguments provided") — were unreachable, and execution continued to ::execvp(args[0], ...) with a null file name (undefined behavior).

Return the empty vector when no arguments exist so the existing guards work; the terminating nullptr is only appended for non-empty argument lists.

Validation

• Both caller sites verified: delegate_run and run_init only touch args[0]/args.data() after the (now reachable) empty check, so the empty vector is safe.
• ll-init builds cleanly with the change (cmake --build --preset debug --target linglong__ll-init).

[deepin-ci-robot]

Hi @chennaji9. Thanks for your PR.

I'm waiting for a OpenAtom-Linyaps member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
apps/ll-init/src/ll-init.cpp	0.00%	2 Missing ⚠️

Files with missing lines	Coverage Δ
apps/ll-init/src/ll-init.cpp	0.00% <0.00%> (ø)

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[chennaji9]

@reddevillg 您好，打扰一下～CI 这边仍在等 org 成员的 /ok-to-test 放行（commitlint 问题 10-15 已修复跟进）。方便的话能否帮忙触发一下 CI？绿了之后也恳请帮忙 review、合入，辛苦了，感谢！