Merge pull request #814 from TopRichard/eessi-2023.06-fix-clean-up-dir-install_cuda_and_libraries.sh

clean `${tmpdir}` after iterations in `install_cuda_and_libraries.sh`

Author: trz42

scripts/gpu_support/nvidia/install_cuda_and_libraries.sh

@@ -239,8 +239,8 @@ for EASYSTACK_FILE in ${TOPDIR}/easystacks/eessi-*CUDA*.yml; do
       echo_green "all installations at ${EESSI_SITE_SOFTWARE_PATH}/software/... succeeded!"
     fi
 
-    # clean up tmpdir
-    rm -rf "${tmpdir}"
+    # clean up tmpdir content
+    rm -rf "${tmpdir}"/*
 
     # Restore MODULEPATH for next loop iteration
     MODULEPATH=${SAVE_MODULEPATH}