Fix Array::resize_raw() to allow resizing to the length of the array. (#63)

The `new_len` parameter to Array::resize_raw() is the new length of the
contained octets sequence. The documentation for resize_raw() specifies
that it is an error for `new_len` to be larger than the array size,
but the current code also returns an error if `new_len` is equal to the
array size.

Author: edmonds

src/array.rs

@@ -42,7 +42,7 @@ impl<const N: usize> Array<N> {
     ///
     /// Returns an error if `new_len` is larger than the array size.
     pub fn resize_raw(&mut self, new_len: usize) -> Result<(), ShortBuf> {
-        if new_len >= N {
+        if new_len > N {
             Err(ShortBuf)
         }
         else {