update clap v3.0.4 -> v3.1.3

Cargo.lock

@@ -134,9 +134,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "3.0.7"
+version = "3.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12e8611f9ae4e068fa3e56931fded356ff745e70987ff76924a6e0ab1c8ef2e3"
+checksum = "86f8c0e2a6b902acc18214e24a6935cdaf8a8e34231913d4404dcaee659f65a1"
 dependencies = [
  "atty",
  "bitflags",
@@ -160,9 +160,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "3.0.6"
+version = "3.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "517358c28fcef6607bf6f76108e02afad7e82297d132a6b846dcc1fc3efcd153"
+checksum = "01d42c94ce7c2252681b5fed4d3627cc807b13dfc033246bd05d5b252399000e"
 dependencies = [
  "heck",
  "proc-macro-error",

Cargo.toml

@@ -15,7 +15,7 @@ description = "A command-line utility for easily compressing and decompressing f
 [dependencies]
 atty = "0.2.14"
 bzip2 = "0.4.3"
-clap = { version = "3.0.4", features = ["derive", "env"] }
+clap = { version = "3.1.3", features = ["derive", "env"] }
 flate2 = { version = "1.0.22", default-features = false }
 fs-err = "2.6.0"
 libc = "0.2.103"

build.rs

@@ -14,7 +14,7 @@ fn main() {
 
     let out = &Path::new(&env::var_os("OUT_DIR").unwrap()).join("completions");
     create_dir_all(out).unwrap();
-    let app = &mut Opts::into_app();
+    let app = &mut Opts::command();
 
     for shell in Shell::value_variants() {
         generate_to(*shell, app, "ouch", out).unwrap();