[Ubuntu Wiki] Update of "DebuggingEmacs" by era

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The following page has been changed by era:
http://wiki.ubuntu.com/DebuggingEmacs?action=diff&rev1=6&rev2=7

The comment on the change is:
Link to known bugs #467446, #464587, #222870, #396038, #582341

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  '''Closed'''
  ||<rowbgcolor="#eeeeee"> '''Bug''' || '''Subject''' || '''Symptom''' ||
- || [[https://launchpad.net/bugs/8896|8896]] || The subject from LP || This bug can be identified by ... ||
+ || [[https://launchpad.net/bugs/467446|467446]] || update-alternatives: error: alternative path /usr/bin/xemacs21 doesn't exist || Fixed in a recent version of `xemacs21` but still affects people runnng older Ubuntu releases ||
+ || [[https://launchpad.net/bugs/464587|464587]] || ocaml-mode: Invalid syntax description flag: "()1n" || Fixed in a recent version of `ocaml` but still affects people runnng older Ubuntu releases and `xemacs21` ||
+ || [[https://launchpad.net/bugs/222870|222870]] || anjsp: Wrong number of arguments: require, 3 || `anjsp` is not compatible with `xemacs21`.  It no longer ships with Ubuntu but still affects people running older Ubuntu releases ||
+ || [[https://launchpad.net/bugs/396038|396038]] || Group `staff` missing; Emacs installation failed || This rare error was never properly debugged, but it did occur more than once ||
  
  = Non-bugs =
  
  To the best of our knowledge, this is not an Emacs bug, but it appears to manifest a lot when installing Emacs:
  
  ||<rowbgcolor="#eeeeee"> '''Bug''' || '''Subject''' || '''Symptom''' ||
- || [[https://launchpad.net/bugs/512096| 512096]] || Exec format error: package failed to install/remove || Seems to often affect `emacsen-common` -- `00debian-vars.el` or similar file missing even though package apparently installed ||
+ || [[https://launchpad.net/bugs/512096|512096]] || Exec format error: package failed to install/remove || Seems to often affect `emacsen-common` -- `00debian-vars.el` or similar file missing even though package apparently installed.  See also bug [[https://launchpad.net/bugs/582341|#582341]] ||
  
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  CategoryBugSquad