prevent 'iob logs --watch' logging entries two times

[foxriver76]

Link the issue which is closed by this PR

• closes #2831

Implementation details

We now only don't follow the symlinks anymore to prevent double logging on linux

Tests

• [ ] I have added tests to avoid a recursion of this bug
• [x] It is not possible to test for this bug

If no tests added, please specify why it was not possible

too complex ;-)