cm_cxx_features: Filter out libhugetlbfs warnings
CMake fails to build on Cray systems with a craype-hugepages modulefile loaded on the front-end due to libhugetlbfs Warnings getting treated as CXX Feature tests. This MR filters out the warnings so the bootstrap can proceed to successfully install CMake on Cray Linux systems.
Fixes: #20645 (closed)
Backport: release
Topic-rename: cm_cxx_features-libhugetlbfs
Cc: @chuck.atkins @purpleKarrot
Edited by Brad King