coreutils: Print utility not found to stderr

Author: oech3

src/common/validation.rs

@@ -25,7 +25,7 @@ pub fn get_all_utilities<T: Args>(
 
 /// Prints a "utility not found" error and exits
 pub fn not_found(util: &OsStr) -> ! {
-    println!("{}: function/utility not found", util.maybe_quote());
+    eprintln!("{}: function/utility not found", util.maybe_quote());
     process::exit(1);
 }
 

tests/test_util_name.rs

@@ -195,9 +195,9 @@ fn util_invalid_name_invalid_command() {
         .unwrap();
     let output = child.wait_with_output().unwrap();
     assert_eq!(output.status.code(), Some(1));
-    assert_eq!(output.stderr, b"");
+    assert_eq!(output.stdout, b"");
     assert_eq!(
-        output.stdout,
+        output.stderr,
         b"definitely_invalid: function/utility not found\n"
     );
 }