I know it can be tedious, but if you don't trust a piece of free software you have the opportunity to analyze its source code and decide for yourself if it's ok

I know it can be tedious, but if you don't trust a piece of free software you have the opportunity to analyze its source code and decide for yourself if it's ok for your use case. Also, it's debatable whether `man -w` without further arguments is standard usage, since it's clearly an incomplete command (that should return nonzero, but that's another story).