tweak unrecognized arguments error message

Author: lqd

src/cli.rs

@@ -211,14 +211,10 @@ fn readable_pico_error(error: pico::Error) -> Error {
             format!("'{}' isn't a valid value ({})", value, cause)
         }
         Error::OptionWithoutAValue(_) => "missing value".to_string(),
-        Error::UnusedArgsLeft(left) => {
-            let plural = if left.len() > 1 { "were" } else { "was" };
-            format!(
-                "error parsing arguments: {} {} not recognized",
-                left.join(", "),
-                plural
-            )
-        }
+        Error::UnusedArgsLeft(left) => format!(
+            "error, unrecognized arguments: {}",
+            left.join(", ")
+        ),
         Error::NonUtf8Argument => "not a valid utf8 value".to_string(),
     })
 }