fixes assert_cmd deprecation of cargo_bin

Author: wookietreiber

tests/arguments.rs

@@ -2,7 +2,6 @@ mod util;
 
 use std::error::Error;
 
-use assert_cmd::prelude::*;
 use predicates::prelude::*;
 
 #[test]

tests/util/mod.rs

@@ -1,10 +1,10 @@
 use std::error::Error;
-use std::process::Command;
 
-use assert_cmd::prelude::*;
+use assert_cmd::Command;
+use assert_cmd::cargo::cargo_bin_cmd;
 
 pub fn bin(args: &[&str]) -> Result<Command, Box<dyn Error>> {
-    let mut cmd = Command::cargo_bin(env!("CARGO_PKG_NAME"))?;
+    let mut cmd = cargo_bin_cmd!();
     cmd.args(args);
     Ok(cmd)
 }