bug#30434: magit won’t work over TRAMP

[Ricardo Wurmus]

The default value for “magit-git-executable” (when magit is installed
via Guix) appears to be a store path, such as
“/gnu/store/l7g5r1c2i0bf3cd71g53ajy8khdcyidz-git-2.16.1/bin/git”.  This
means that when magit is used over TRAMP it will try to find the exact
same git executable on the remote.

Instead, magit should only look for “git” on the remote, not for the
exact store location of a particular git executable.

I could only use magit over TRAMP after setting “magit-git-executable”
to “git”.

--
Ricardo

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