timeout: add support for -f and -p short options

src/uu/timeout/src/timeout.rs

@@ -129,6 +129,7 @@ pub fn uu_app() -> Command {
         .arg(
             Arg::new(options::FOREGROUND)
                 .long(options::FOREGROUND)
+                .short('f')
                 .help(
                     "when not running timeout directly from a shell prompt, allow \
                 COMMAND to read from the TTY and get TTY signals; in this mode, \
@@ -148,6 +149,7 @@ pub fn uu_app() -> Command {
         .arg(
             Arg::new(options::PRESERVE_STATUS)
                 .long(options::PRESERVE_STATUS)
+                .short('p')
                 .help("exit with the same status as COMMAND, even when the command times out")
                 .action(ArgAction::SetTrue),
         )

tests/by-util/test_timeout.rs

@@ -83,15 +83,28 @@ fn test_command_empty_args() {
 }
 
 #[test]
-fn test_preserve_status() {
+fn test_foreground() {
+    for arg in ["-f", "--foreground"] {
         new_ucmd!()
-        .args(&["--preserve-status", ".1", "sleep", "10"])
+            .args(&[arg, ".1", "sleep", "10"])
+            .fails()
+            .code_is(124)
+            .no_output();
+    }
+}
+
+#[test]
+fn test_preserve_status() {
+    for arg in ["-p", "--preserve-status"] {
+        new_ucmd!()
+            .args(&[arg, ".1", "sleep", "10"])
             .fails()
             // 128 + SIGTERM = 128 + 15
             .code_is(128 + 15)
             .no_stderr()
             .no_stdout();
     }
+}
 
 #[test]
 fn test_preserve_status_even_when_send_signal() {