numfmt: protect name from argv[0], perf +3%

Author: oech3

src/uu/numfmt/src/numfmt.rs

@@ -23,7 +23,7 @@ use uucore::error::UResult;
 
 use uucore::parser::shortcut_value_parser::ShortcutValueParser;
 use uucore::ranges::Range;
-use uucore::{format_usage, os_str_as_bytes, show, translate, util_name};
+use uucore::{format_usage, os_str_as_bytes, show, translate};
 
 pub mod errors;
 pub mod format;
@@ -112,7 +112,7 @@ fn write_line<W: std::io::Write>(
                 show!(NumfmtError::FormattingError(error_message));
             }
             InvalidModes::Warn => {
-                let _ = writeln!(stderr(), "{}: {error_message}", util_name());
+                let _ = writeln!(stderr(), "numfmt: {error_message}");
             }
             InvalidModes::Ignore => {}
         }
@@ -326,8 +326,7 @@ fn print_debug_warnings(options: &NumfmtOptions, matches: &ArgMatches) {
     {
         let _ = writeln!(
             stderr(),
-            "{}: {}",
-            util_name(),
+            "numfmt: {}",
             translate!("numfmt-debug-no-conversion")
         );
     }
@@ -336,8 +335,7 @@ fn print_debug_warnings(options: &NumfmtOptions, matches: &ArgMatches) {
     if options.header > 0 && matches.get_many::<OsString>(NUMBER).is_some() {
         let _ = writeln!(
             stderr(),
-            "{}: {}",
-            util_name(),
+            "numfmt: {}",
             translate!("numfmt-debug-header-ignored")
         );
     }
@@ -375,9 +373,9 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
 }
 
 pub fn uu_app() -> Command {
-    Command::new(util_name())
+    Command::new("numfmt")
         .version(uucore::crate_version!())
-        .help_template(uucore::localized_help_template(util_name()))
+        .help_template(uucore::localized_help_template("numfmt"))
         .about(translate!("numfmt-about"))
         .after_help(translate!("numfmt-after-help"))
         .override_usage(format_usage(&translate!("numfmt-usage")))