/usr/share/lintian/overrides/libqtcurve-utils2 is in libqtcurve-utils2 1.8.18+git20160320-3d8622c-3+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # Symbols control file for this library is useless.
libqtcurve-utils2: no-symbols-control-file usr/lib/i386-linux-gnu/libqtcurve-utils.so*
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