refactor(man): remove cli-man feature, gate on cli instead

The man page module only needs clap (provided by the cli feature), so
there is no need for a separate cli-man feature. This matches how
pdu-usage-md requires only cli.

https://claude.ai/code/session_01CrXuWDMVQsiUBoy6ceACsF

Author: claude

Cargo.toml

@@ -47,7 +47,7 @@ required-features = ["cli-completions"]
 [[bin]]
 name = "pdu-man-page"
 path = "cli/man_page.rs"
-required-features = ["cli-man"]
+required-features = ["cli"]
 
 [[bin]]
 name = "pdu-usage-md"
@@ -64,7 +64,6 @@ default = ["cli"]
 json = ["serde/derive", "serde_json"]
 cli = ["clap/derive", "clap_complete", "clap-utilities", "json"]
 cli-completions = ["cli"]
-cli-man = ["cli"]
 ai-instructions = ["clap/derive"]
 
 [dependencies]

run.sh

@@ -1,3 +1,3 @@
 #! /bin/bash
 set -o errexit -o pipefail -o nounset
-exec cargo run --bin="$1" --features cli-completions,cli-man,ai-instructions -- "${@:2}"
+exec cargo run --bin="$1" --features cli-completions,ai-instructions -- "${@:2}"

src/lib.rs

@@ -14,7 +14,7 @@ pub use serde_json;
 pub mod app;
 #[cfg(feature = "cli")]
 pub mod args;
-#[cfg(feature = "cli-man")]
+#[cfg(feature = "cli")]
 pub mod man_page;
 #[cfg(feature = "cli")]
 pub mod runtime_error;

test.sh

@@ -77,7 +77,6 @@ unit --no-default-features "$@"
 unit --all-features "$@"
 unit --features cli "$@"
 unit --features cli-completions "$@"
-unit --features cli-man "$@"
 unit --features ai-instructions "$@"
 
 if [[ -f "$failure_marker" ]]; then

tests/sync_man_page.rs

@@ -5,7 +5,7 @@
 // Since the CLI in Windows looks a little different, and I am way too lazy to make two versions
 // of man page files, the following test would only run in UNIX-like environment.
 #![cfg(unix)]
-#![cfg(feature = "cli-man")]
+#![cfg(feature = "cli")]
 
 use parallel_disk_usage::man_page::render_man_page;