print unrecognized option/argument value

diff --git a/src/main.rs b/src/main.rs
index 9694836feedb8bccc0f7868bc118c2a6d394b3eb..501767d6749e933453221d8e5e11053aa196ee25 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1124,9 +1124,9 @@ fn main() {
                         return;
                     }
                 } else if args[arg_idx].starts_with("--") {
-                    println!("unknown option");
+                    println!("unknown option '{}'", args[arg_idx]);
                 } else {
-                    println!("unrecognized argument");
+                    println!("unrecognized argument '{}'", args[arg_idx]);
                 }
             },
         };