Canonicalize clap command derivation

Author: jgarzik

calc/bc.rs

@@ -23,7 +23,7 @@ mod bc_util;
 
 /// bc - arbitrary-precision arithmetic language
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     #[arg(short = 'l')]
     define_math_functions: bool,

datetime/date.rs

@@ -20,7 +20,7 @@ const DEF_TIMESTR: &str = "%a %b %e %H:%M:%S %Z %Y";
 
 /// date - write the date and time
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     /// Perform operations as if the TZ env var was set to the string "UTC0"
     #[arg(short, long)]

datetime/sleep.rs

@@ -14,7 +14,7 @@ use std::{thread, time};
 
 /// sleep - suspend execution for an interval
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     /// Number of seconds to sleep
     #[arg(value_parser = clap::value_parser!(u64).range(1..))]

datetime/time.rs

@@ -17,7 +17,7 @@ use gettextrs::{bind_textdomain_codeset, setlocale, textdomain, LocaleCategory};
 use plib::PROJECT_NAME;
 
 #[derive(Parser)]
-#[command(author, version, about, long_about = None)]
+#[command(version, about)]
 struct Args {
     /// Write timing output to standard error in POSIX format
     #[arg(short, long)]

dev/ar.rs

@@ -157,7 +157,7 @@ enum Commands {
 
 /// ar - create and maintain library archives
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     #[command(subcommand)]
     command: Commands,

dev/nm.rs

@@ -31,7 +31,7 @@ enum OutputType {
 
 /// nm - write the name list of an object file
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     /// Write the full pathname or library name of an object on each line.
     #[arg(short = 'A', long = "print-file-name")]

dev/strings.rs

@@ -41,7 +41,7 @@ struct OutputOptions {
 
 /// strings - find printable strings in files
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     #[command(flatten)]
     output_options: OutputOptions,

dev/strip.rs

@@ -23,7 +23,7 @@ use plib::PROJECT_NAME;
 
 /// strip - remove unnecessary information from strippable files
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     input_files: Vec<OsString>,
 }

file/cat.rs

@@ -20,7 +20,7 @@ use std::path::PathBuf;
 
 /// cat - concatenate and print files
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     /// Disable output buffering (a no-op, for POSIX compat.)
     #[arg(short, long, default_value_t = true)]

file/cmp.rs

@@ -16,7 +16,7 @@ use std::process::ExitCode;
 
 /// cmp - compare two files
 #[derive(Parser)]
-#[command(author, version, about, long_about)]
+#[command(version, about)]
 struct Args {
     /// Write the byte number (decimal) and the differing bytes (octal) for each difference.
     #[arg(short = 'l', long, group = "verbosity")]