/usr/lib/slang/v2/modules/histogram-module.so is in slang-histogram 0.3.2a-3.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/slang/v2/modules/histogram-module.so.0.3.2
/usr/lib/slang/v2/modules/histogram-module.so.0.3.2