do an ls on the original subdirs of the installation dir to work around permission issues (instead of recreating them)

Author: bedroge

EESSI-remove-software.sh

@@ -130,12 +130,12 @@ if [ $EUID -eq 0 ]; then
                     echo_yellow "Removing ${app_dir} and ${app_module}..."
                     rm -rf ${app_dir}
                     rm -rf ${app_module}
-                    # recreate the installation directories and first-level subdirectories to work around permission denied
-                    # issues when rebuilding the package (see https://github.com/EESSI/software-layer/issues/556)
+                    # recreate the installation directory and do an ls on the first-level subdirectories to work around
+                    # permission denied issues when rebuilding the package (see https://github.com/EESSI/software-layer/issues/556)
                     echo_yellow "Recreating an empty ${app_dir}..."
                     mkdir -p ${app_dir}
                     for app_subdir in ${app_subdirs}; do
-                        mkdir -p ${app_subdir}
+                        ls ${app_subdir} >& /dev/null || true
                     done
                 done
             else