Christoph Anton Mitterer 46ee9ac41c [shell] make __fzf_list_hosts() definable by the user
Just like it’s already done for `_fzf_compgen_path()` and `_fzf_compgen_dir()`
allow a user to easily define his own version of `__fzf_list_hosts()`.

Also add some documentation on the expected “interface” of such custom function.

Signed-off-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
2023-10-12 20:44:25 +09:00
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