Long line

src/test/run-pass/issue-4541.rs

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+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn parse_args() -> ~str {
+    let args = core::os::args();
+    let mut n = 0;
+
+    while n < args.len() {
+        match copy args[n] {
+            ~"-v" => (),
+            s => {
+                return s;
+            }
+        }
+        n += 1;
+    }
+
+    return ~""
+}
+
+fn main() {
+    io::println(parse_args());
+}