part.
@findex toggle-debug-on-error
+@pindex Edebug
To make a backtrace for the error, use @kbd{M-x toggle-debug-on-error}
before the error happens (that is to say, you must give that command
and then make the bug happen). This causes the error to run the Lisp
debugger, which shows you a backtrace. Copy the text of the
debugger's backtrace into the bug report. @xref{Debugger,, The Lisp
Debugger, elisp, the Emacs Lisp Reference Manual}, for information on
-debugging Emacs Lisp programs.
+debugging Emacs Lisp programs with the Edebug package.
This use of the debugger is possible only if you know how to make the
bug happen again. If you can't make it happen again, at least copy