bug#61637: 30.0.50; Fix Eglot tests that need HOME=~USER

[João Távora]

Eli Zaretskii <eliz@gnu.org> writes:

>> So the suggestion is for parties interested in running the full
>> unadulterated Eglot suite to set this environment variable, thus opting
>> into using their HOME or any other HOME-like environment they may have
>> set up?
>
> For process-environment only, i.e. for the LSP server that is being
> started.  Presumably, not for Emacs itself.

That is correct.  Only for process-environment, and only within
'eglot--with-fixture'.

João