Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 59 insertions, 0 deletions

diff --git a/vendor/clap/examples/tutorial_builder/03_04_subcommands.md b/vendor/clap/examples/tutorial_builder/03_04_subcommands.md
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+```console
+$ 03_04_subcommands help
+A simple to use, efficient, and full-featured Command Line Argument Parser
+
+Usage: 03_04_subcommands[EXE] <COMMAND>
+
+Commands:
+  add   Adds files to myapp
+  help  Print this message or the help of the given subcommand(s)
+
+Options:
+  -h, --help     Print help
+  -V, --version  Print version
+
+$ 03_04_subcommands help add
+Adds files to myapp
+
+Usage: 03_04_subcommands[EXE] add [NAME]
+
+Arguments:
+  [NAME]  
+
+Options:
+  -h, --help     Print help
+  -V, --version  Print version
+
+$ 03_04_subcommands add bob
+'myapp add' was used, name is: Some("bob")
+
+```
+
+Because we set [`Command::arg_required_else_help`][crate::Command::arg_required_else_help]:
+```console
+$ 03_04_subcommands
+? failed
+A simple to use, efficient, and full-featured Command Line Argument Parser
+
+Usage: 03_04_subcommands[EXE] <COMMAND>
+
+Commands:
+  add   Adds files to myapp
+  help  Print this message or the help of the given subcommand(s)
+
+Options:
+  -h, --help     Print help
+  -V, --version  Print version
+
+```
+
+Since we specified [`Command::propagate_version`][crate::Command::propagate_version], the `--version` flag
+is available in all subcommands:
+```console
+$ 03_04_subcommands --version
+clap [..]
+
+$ 03_04_subcommands add --version
+clap-add [..]
+
+```