Describe the bug
CleanOldLogFiles calls into GetExistingTempDirectories, which is hardcoded to find a "tmp" directory, which is NOT what FLAGS_log_dir points to.

Flavor(please complete the following information):
Select your flavor:

• [*] fcitx5-rime

Package:

• OS: Linux
• Version: 1.8.5

Additional context
Add any other context about the problem here.