get_confs only store existing files

inventory.sh

@@ -34,7 +34,7 @@ get_confs() {
         for conf_file in $(cat "$confs"); do
             # XXX: Expand the filenames
             for glob in $(awk '/^[[:space:]]*Include/ {print $2}' "$conf_file"); do
-                realpath --no-symlinks $glob >> "$confs"
+                realpath --canonicalize-existing --no-symlinks --quiet $glob >> "$confs"
             done
         done
         sort "$confs" | uniq > "$confs"_tmp && mv "$confs"_tmp "$confs"