bare3: tack 3

examples/bare3.rs

@@ -26,7 +26,7 @@ fn main() {
     }
 
     let mut a: [u8; 4] = [65; 4];
-    //let mut a = [0u8; 4];
+    let mut a = [0u8; 4];
     ipln!();
     ipln!("iterate iterate using (raw) indexing");
     let i: usize;
@@ -89,6 +89,8 @@ fn main() {
 // 3. uncomment line 28 (let mut a = [0u8; 4];)
 // what happens and why
 // ** your answer here **
+//  the outprint from a become:
+//  a = 
 //
 // commit your answers (bare3_3)
 //