bug#65481: Replace defadvice with advice-add in Tramp manual

[Stefan Kangas]

Michael Albinus <michael.albinus@gmx.de> writes:

>> The Tramp manual recommends `defadvice', but it is now obsolete
>> (commit 27ed565ec6).  How about changing the below examples to use
>> `advice-add' instead?
>>
>> ./misc/tramp.texi:5257:(defadvice tramp-handle-write-region
>> ./misc/tramp.texi:5265:(defadvice tramp-handle-do-copy-or-rename-file
>> ./misc/tramp.texi:5273:(defadvice tramp-handle-insert-file-contents
>> ./misc/tramp.texi:5531:(defadvice minibuffer-complete
>
> Yes, pls do.

I was hoping someone more familiar with Tramp could do it, wink wink.