touch/gnu compat: 'touch no-file' exit code should be 1

src/uu/touch/src/touch.rs

@@ -168,6 +168,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
 
             if let Err(e) = File::create(path) {
                 show_warning!("cannot touch '{}': {}", path, e);
+                error_code = 1;
                 continue;
             };
 

tests/by-util/test_touch.rs

@@ -459,3 +459,10 @@ fn test_touch_system_fails() {
         .fails()
         .stderr_contains("setting times of '/'");
 }
+
+#[test]
+fn test_touch_trailing_slash() {
+    let (_at, mut ucmd) = at_and_ucmd!();
+    let file = "no-file/";
+    ucmd.args(&[file]).fails();
+}