/usr/share/lintian/overrides/liblttoolbox3-3.3-0v5 is in liblttoolbox3-3.3-0v5 3.3.3~r68466-2+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # Symbols file only gets in the way for C++
no-symbols-control-file
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