[bug #60782] groff: doesn't exit with status 1 when .ab request used with -Thtml

[G. Branden Robinson]

Update of bug #60782 (project groff):

             Open/Closed:                    Open => Closed                 
         Planned Release:                    None => 1.23.0                 

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Follow-up Comment #5:


commit 11137209eded488c5ecb598e13bd9450f004dd49
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
Date:   Mon Jun 27 10:34:32 2022 -0500

    [pre-grohtml]: Fix Savannah #60782.
    
    * src/preproc/html/pre-html.cpp (char_buffer::run_output_filter): Return
      wait status of child process.
    
      (char_buffer::run_output_filter, main): Rename local variable `status`
      to `wstatus` to recognize distinction between exit status (a 7-bit
      quantity) and wait status (a wider type).
    
      (main): Issue fatal diagnostic if child process exited with nonzero
      status.  Since the child's output to the standard error stream is
      lost, advise re-running with different output driver to see them.
      This unhappy shortcoming is filed as Savannah #62673.  Explicitly
      return zero otherwise.
    
    Fixes <https://savannah.gnu.org/bugs/?60782>.



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