Upgrade rust/crates/structopt to 0.3.22

Test: make
Change-Id: Id5e1a89dea1beece1f6ec549d6afc4dac67dc9b4

2 files changed, 28 insertions, 1 deletions

diff --git a/examples/enum_in_args_with_strum.rs b/examples/enum_in_args_with_strum.rs
new file mode 100644
index 0000000..a045a48
--- /dev/null
+++ b/examples/enum_in_args_with_strum.rs
@@ -0,0 +1,27 @@
+use structopt::StructOpt;
+use strum::{EnumString, EnumVariantNames, VariantNames};
+
+const DEFAULT: &str = "txt";
+
+#[derive(StructOpt, Debug)]
+struct Opt {
+    #[structopt(
+        long,
+        possible_values = Format::VARIANTS,
+        case_insensitive = true,
+        default_value = DEFAULT,
+    )]
+    format: Format,
+}
+
+#[derive(EnumString, EnumVariantNames, Debug)]
+#[strum(serialize_all = "kebab_case")]
+enum Format {
+    Txt,
+    Md,
+    Html,
+}
+
+fn main() {
+    println!("{:?}", Opt::from_args());
+}
diff --git a/examples/example.rs b/examples/example.rs
index 7a9a514..71cc124 100644
--- a/examples/example.rs
+++ b/examples/example.rs
@@ -37,7 +37,7 @@ struct Opt {
 
     // An optional list of values, will be `None` if not present on
     // the command line, will be `Some(vec![])` if no argument is
-    // provided (i.e. `--optv`) and will be `Some(Some(String))` if
+    // provided (i.e. `--optv`) and will be `Some(Vec<String>)` if
     // argument list is provided (e.g. `--optv a b c`).
     #[structopt(long)]
     optv: Option<Vec<String>>,