directoryListingUpdater2: align with upstream nixpkgs PR

pkgs/by-name/directoryListingUpdater2/list-directory-versions

@@ -62,7 +62,7 @@ if __name__ == "__main__":
         link_url = link.get("href", None)
         if link_url is not None:
             match = re.fullmatch(
-                rf"(.*/)?{args.pname}_([\d.]+?(-[\d\w.-]+?)?)(\.tar)?(\.[^.]*)", link_url
+                rf"(.*/)?{args.pname}[-_]([\d.]+?(-[\d\w.-]+?)?)(\.tar)?(\.[^.]*)", link_url
             )
             if match:
                 version = match.group(2)

pkgs/by-name/directoryListingUpdater2/package.nix

@@ -1,6 +1,9 @@
 # heavily based on <repo:nixos/nixpkgs:pkgs/common-updater/scripts.nix>
 # and <repo:nixos/nixpkgs:pkgs/common-updater/scripts/list-directory-versions>.
 # main difference is that it does fuzzier matching.
+#
+# remove this package once this PR lands:
+# - <https://github.com/NixOS/nixpkgs/pull/347619>
 {
   lib,
   genericUpdater,