Here's the better changelog entry:

apport (2.20.10-0ubuntu24) disco; urgency=medium                                                                                                                                                                                               
                                                                                                                                                                                                                                               
  * debian/control: apport-gtk should depend on whoopsie-preferences as that                                                                                                                                                                   
    is needed to store preferences for reporting crashes. (LP: #1809247)                                                                                                                                                                       
  * apport/report.py, apport/ui.py: raise ValueError if the pid is not                                                                                                                                                                         
    accessible, display an error message for that or an invalid pid. (LP: #1396160)                                                                                                                                                            
  * switch from pyflakes to pyflakes3, drop some python2 code                                                                                                                                                                                  
  * apport/report.py: Have add_gdb_info return a FileNotFoundError if gdb or                                                                                                                                                                   
    the crashing executable are not found and modify whoopsie-upload-all to                                                                                                                                                                    
    upload crashes in that situation. (LP: #1820132)                                                                                                                                                                                           
  * debian/control, apport/hookutils.py: pkexec does not work in non-graphical                                                                                                                                                                 
    environments yet (LP #1821415) and its providing package should only be                                                                                                                                                                    
    a suggests because gathering of information as root isn't entirely                                                                                                                                                                         
    necessary for a bug report.