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hostname: when domain is none, it should be outputted to stdout

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
72/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
rust
Domain
cli

Research direction

Start by running the reported uu_hostname command and compare its behavior with GNU hostname --domain. Locate the uu_hostname implementation and its tests, then ensure the --domain case outputs (none) to stdout and add or update coverage for that behavior.

Written by the indexing model from the issue text.

Description

U - hostname

GNU:

$ hostname --domain
(none)

uutils:

$ cargo run -q -p uu_hostname -- --domain
Dominant language
Rust
Stars
24.2k
Forks
2.1k
Avg merge
1d 7h
Merged PRs (30d)
312

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