bug#24555: [PATCH] Remove unused variable `command-debug-status'

[Philippe Vaucher <philippe.vaucher@gmail.com>]

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> Either "git diff" with the commit log message prepended, or
> "git format-patch", whatever works best for you.

Alright.

> I think your patch lacks the call to make-obsolete-variable.  We need
> that to warn users of this variable about it being obsoleted.

Well, I thought about it but was not sure about various things, so I didn't
do it. Here are the things I'm unsure about:

(make-obsolete-variable OBSOLETE-NAME CURRENT-NAME WHEN
&optional ACCESS-TYPE)

Make the byte-compiler warn that OBSOLETE-NAME is obsolete.
The warning will say that CURRENT-NAME should be used instead.
If CURRENT-NAME is a string, that is the ‘use instead’ message.
WHEN should be a string indicating when the variable
was first made obsolete, for example a date or a release number.



   1. Where should I make the `make-obsolete-variable` call (in which
   file)? Given it's defined in callint.c it's not really obvious in which .el
   it should go.
   2. I don't have a "current name". Should I make CURRENT-NAME something
   like "This variable will be removed in the future"? Should I pass "nil"?
   3. What WHEN release number should I use? 25.2 ?

Thanks,
Philippe

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