[CMake] Shouldn't FindHDF5 also set HDF5_INCLUDE_DIRS?

[Marcel Loose]

Hi all,

According to the guidelines in the Modules/readme.txt file, each
FindXXX.cmake file should define a non-cached XXX_INCLUDE_DIRS variable.
I noticed that FindHDF5.cmake doesn't. Maybe this can be fixed before
CMake 2.8.0?

Best regards,
Marcel Loose.