[bug #68192] [long-term] check all dynamic ("heap") memory allocations for success

Follow-up Comment #6, bug #68192 (group groff):


commit e91aeb7cae691b5318803c52b1bf2939963cbfa2
Author: G. Branden Robinson <[email protected]>
Date:   Mon May 25 03:28:49 2026 -0500

    [tfmtodit]: Be more fastidious with heap memory.
    
    * src/utils/tfmtodit/tfmtodit.cpp (struct char_list): Declare
      destructor.
    
      (char_list::~char_list): Define destructor free(3)ing memory allocated
      by strdup(3) in constructor.
    
      (main): Handle failure of strdup(3) as a fatal error.  free(3) the
      storage it allocates when done with it.
    
    Continues the long process of fixing Savannah #68192.




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