upgrade clap, fix tests

Cargo.toml

@@ -17,7 +17,7 @@ anyhow = "1.0.58"
 blake3 = "1.3.1"
 # Disable clap's suggestions feature, because it sometimes suggests nonsense:
 # https://github.com/clap-rs/clap/discussions/3962
-clap = { version = "3.2.8", features = ["std", "derive", "color"], default-features = false }
+clap = { version = "4", features = ["derive", "std", "color"], default-features = false }
 console = { version = "0.15.0", default-features = false }
 ctrlc = "3.2.2"
 dialoguer = { version = "0.10.1", default-features = false }

src/main.rs

@@ -65,20 +65,17 @@ enum Command {
         yes: bool,
         /// The names of the commands to expose. If missing, quickenv will determine recommended
         /// commands itself and ask for confirmation.
-        #[clap(value_parser)]
         commands: Vec<String>,
     },
     /// Remove a shim binary from ~/.quickenv/bin/.
     Unshim {
-        #[clap(value_parser)]
         /// The names of the commands to remove.
         commands: Vec<String>,
     },
     /// Run a program with .envrc loaded without having to shim it.
     Exec {
-        #[clap(value_parser)]
         program_name: OsString,
-        #[clap(value_parser)]
+        #[clap(allow_hyphen_values = true, trailing_var_arg = true)]
         args: Vec<OsString>,
     },
     /// Determine which program quickenv's shim would launch under the hood.
@@ -87,7 +84,6 @@ enum Command {
     /// happen anyway.
     Which {
         /// The command name to look up.
-        #[clap(value_parser)]
         program_name: OsString,
 
         /// If quickenv does not have a shim under the given program name, this command errors by

tests/acceptance.rs

@@ -495,9 +495,10 @@ fn test_eating_own_tail3() -> Result<(), Error> {
     [ERROR quickenv] failed to run shimmed command
 
     Caused by:
-        0: failed to find actual binary
-        1: failed to find hello
-        2: cannot find binary path
+        0: failed to run hello
+        1: failed to find actual binary
+        2: failed to find hello
+        3: cannot find binary path
     "###);
     Ok(())
 }