l10n: port yes to translation + add french

src/uu/yes/locales/en-US.ftl

@@ -1,2 +1,6 @@
 yes-about = Repeatedly display a line with STRING (or 'y')
 yes-usage = yes [STRING]...
+
+# Error messages
+yes-error-standard-output = standard output: { $error }
+yes-error-invalid-utf8 = arguments contain invalid UTF-8

src/uu/yes/locales/fr-FR.ftl

@@ -0,0 +1,6 @@
+yes-about = Affiche de façon répétée une ligne avec CHAÎNE (ou 'y')
+yes-usage = yes [CHAÎNE]...
+
+# Messages d'erreur
+yes-error-standard-output = sortie standard : { $error }
+yes-error-invalid-utf8 = les arguments contiennent de l'UTF-8 invalide

src/uu/yes/src/yes.rs

@@ -6,6 +6,7 @@
 // cSpell:ignore strs
 
 use clap::{Arg, ArgAction, Command, builder::ValueParser};
+use std::collections::HashMap;
 use std::error::Error;
 use std::ffi::OsString;
 use std::io::{self, Write};
@@ -14,7 +15,7 @@ use uucore::format_usage;
 #[cfg(unix)]
 use uucore::signals::enable_pipe_errors;
 
-use uucore::locale::get_message;
+use uucore::locale::{get_message, get_message_with_args};
 
 // it's possible that using a smaller or larger buffer might provide better performance on some
 // systems, but honestly this is good enough
@@ -31,7 +32,13 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     match exec(&buffer) {
         Ok(()) => Ok(()),
         Err(err) if err.kind() == io::ErrorKind::BrokenPipe => Ok(()),
-        Err(err) => Err(USimpleError::new(1, format!("standard output: {err}"))),
+        Err(err) => Err(USimpleError::new(
+            1,
+            get_message_with_args(
+                "yes-error-standard-output",
+                HashMap::from([("error".to_string(), err.to_string())]),
+            ),
+        )),
     }
 }
 
@@ -77,7 +84,7 @@ fn args_into_buffer<'a>(
         for part in itertools::intersperse(i.map(|a| a.to_str()), Some(" ")) {
             let bytes = match part {
                 Some(part) => part.as_bytes(),
-                None => return Err("arguments contain invalid UTF-8".into()),
+                None => return Err(get_message("yes-error-invalid-utf8").into()),
             };
             buf.extend_from_slice(bytes);
         }