commit b5b8acfd30a8628061049757bb756e5714eedbcd
Author: Sergey Poznyakoff <gray@gnu.org>
Date:   Wed Feb 23 23:10:27 2022 +0200

    Bugfix
    
    * tools/parseopt.c (parseopt_next): Don't call parseopt_free.  This
    triggered coredumps if, e.g. parseopt_print_help() got called after
    parsing the arguments.  The bug was introduced by 203601fb06 in an
    attempt to pacify valgrind an similar tools.

diff --git a/tools/parseopt.c b/tools/parseopt.c
index 2d646ff..19a6576 100644
--- a/tools/parseopt.c
+++ b/tools/parseopt.c
@@ -709,8 +709,5 @@ parseopt_next (void)
     }
   while (handle_option (rc));
 
-  if (rc == EOF || rc == '?')
-    parseopt_free ();
-  
   return rc;
 }