bug#72358: 29.4; oauth2.el improvements

[Robert Pluim]

>>>>> On Tue, 30 Jul 2024 12:37:05 -0700, Xiyue Deng <manphiz@gmail.com> said:
    Xiyue> The fifth patch adds debug messages when doing a URL query which 
records
    Xiyue> the request URL, the request data, and the response data, and 
provide a
    Xiyue> custom variable to enable this.  This provides a way to help 
debugging
    Xiyue> the requests, and I find it handy when testing oauth2 against 
different
    Xiyue> providers.
    >> 
    >> OK (although perhaps make it a defvar rather than a defcustom, to
    >> avoid people accidentally enabling it).
    >> 

    Xiyue> Done also in patch 5.

I see you changed `oauth2-token-file' to a `defvar', which I donʼt
think you should do. I was talking about making `oauth2-debug' a
defvar.

Robert
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