fix string in from_utf8_lossy_100_multibyte benchmark

src/libcollections/string.rs

@@ -856,8 +856,7 @@ mod tests {
 
     #[bench]
     fn from_utf8_lossy_100_multibyte(b: &mut Bencher) {
-        let s = "𐌀𐌖𐌋𐌄𐌑𐌉ปรدولة\
-            الكويتทศไทย中华𐍅𐌿𐌻𐍆𐌹𐌻𐌰".as_bytes();
+        let s = "𐌀𐌖𐌋𐌄𐌑𐌉ปรدولة الكويتทศไทย中华𐍅𐌿𐌻𐍆𐌹𐌻𐌰".as_bytes();
         assert_eq!(100, s.len());
         b.iter(|| {
             let _ = String::from_utf8_lossy(s);