fix(help): Correctly show help for fake flags

clap_builder/src/builder/arg.rs

@@ -4078,7 +4078,9 @@ impl Arg {
     }
 
     pub(crate) fn is_takes_value_set(&self) -> bool {
-        self.get_action().takes_values()
+        self.get_num_args()
+            .unwrap_or_else(|| 1.into())
+            .takes_values()
     }
 
     /// Report whether [`Arg::allow_hyphen_values`] is set

clap_builder/src/builder/debug_asserts.rs

@@ -704,13 +704,14 @@ fn assert_arg(arg: &Arg) {
         arg.get_id(),
     );
 
-    assert_eq!(
-        arg.get_action().takes_values(),
-        arg.is_takes_value_set(),
-        "Argument `{}`'s selected action {:?} contradicts `takes_value`",
-        arg.get_id(),
-        arg.get_action()
-    );
+    if arg.is_takes_value_set() {
+        assert!(
+            arg.get_action().takes_values(),
+            "Argument `{}`'s selected action {:?} contradicts `takes_value`",
+            arg.get_id(),
+            arg.get_action()
+        );
+    }
     if let Some(action_type_id) = arg.get_action().value_type_id() {
         assert_eq!(
             action_type_id,

clap_mangen/src/render.rs

@@ -99,7 +99,7 @@ pub(crate) fn options(roff: &mut Roff, cmd: &clap::Command) {
             (None, None) => vec![],
         };
 
-        if opt.get_action().takes_values() {
+        if opt.get_num_args().expect("built").takes_values() {
             if let Some(value) = &opt.get_value_names() {
                 header.push(roman("="));
                 header.push(italic(value.join(" ")));
@@ -288,7 +288,7 @@ fn option_environment(opt: &clap::Arg) -> Option<Vec<Inline>> {
 }
 
 fn option_default_values(opt: &clap::Arg) -> Option<String> {
-    if opt.is_hide_default_value_set() || !opt.get_action().takes_values() {
+    if opt.is_hide_default_value_set() || !opt.get_num_args().expect("built").takes_values() {
         return None;
     } else if !opt.get_default_values().is_empty() {
         let values = opt

examples/find.md

@@ -11,15 +11,13 @@ Options:
   -V, --version  Print version
 
 TESTS:
-      --empty [<empty>]  File is empty and is either a regular file or a directory [default: false]
-                         [possible values: true, false]
-      --name <name>      Base of file name (the path with the leading directories removed) matches
-                         shell pattern pattern
+      --empty        File is empty and is either a regular file or a directory
+      --name <name>  Base of file name (the path with the leading directories removed) matches shell
+                     pattern pattern
 
 OPERATORS:
-  -o, --or [<or>]    expr2 is not evaluate if exp1 is true [default: false] [possible values: true,
-                     false]
-  -a, --and [<and>]  Same as `expr1 expr1` [default: false] [possible values: true, false]
+  -o, --or   expr2 is not evaluate if exp1 is true
+  -a, --and  Same as `expr1 expr1`
 
 $ find --empty -o --name .keep
 [