Toolchain: Restore --no-check-certificate option

tools/toolchain/install_cp2k_toolchain.sh

@@ -392,7 +392,7 @@ while [ $# -ge 1 ]; do
       export NPROCS_OVERWRITE="${1#-j}"
       ;;
     --no-check-certificate)
-      export DOWNLOADER_FLAGS="-n"
+      export DOWNLOADER_FLAGS="--no-check-certificate"
       ;;
     --install-all)
       # set all package to the default installation status

tools/toolchain/scripts/tool_kit.sh

@@ -627,7 +627,8 @@ download_pkg_from_cp2k_org() {
   local __filename="$2"
   local __url="https://www.cp2k.org/static/downloads/$__filename"
   # download
-  if ! wget --quiet $__url; then
+  echo "wget ${DOWNLOADER_FLAGS} --quiet $__url"
+  if ! wget ${DOWNLOADER_FLAGS} --quiet $__url; then
     report_error "failed to download $__url"
     return 1
   fi