chore: import upstream snapshot with attribution

postgresql/delete_groups.cgi

@@ -0,0 +1,21 @@
+#!/usr/local/bin/perl
+# Delete multiple PostgreSQL groups
+
+require './postgresql-lib.pl';
+&ReadParse();
+$access{'users'} || &error($text{'user_ecannot'});
+&error_setup($text{'group_derr'});
+@d = split(/\0/, $in{'d'});
+@d || &error($text{'group_enone'});
+
+foreach $g (@d) {
+	if (&get_postgresql_version() >= 8.0) {
+		&execute_sql_logged($config{'basedb'}, "drop group $g");
+		}
+	else {
+		&execute_sql_logged($config{'basedb'}, "delete from pg_group where grosysid = $g");
+		}
+	}
+&webmin_log("delete", "groups", scalar(@d));
+&redirect("list_groups.cgi");
+