Docs: GNUInstallDirs: Clarify that CMAKE_INSTALL_<dir> may be either absolute or relative
In the GNUInstallDirs documentation, please make it more explicit that CMAKE_INSTALL_<dir>
may be either an absolute or a relative path.
It is very easy to come away with the impression that this is always a relative path (mostly because of the examples). It would help to append a sentence: "This may be either a relative or an absolute path."
I understand that there is technically no error in the documentation, but people in a hurry don't always read carefully, and being more explicit is always good.
Reference: https://github.com/jtojnar/cmake-snips#assuming-cmake_install_dir-is-relative-path