/usr/share/lintian/overrides/libicu57 is in libicu57 57.1-6+deb9u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # libicu57 installs multiple shared libraries, none of which is
# actually called libicu.so.57, but all of which are libicu*.so.57.
libicu57: package-name-doesnt-match-sonames
|