chashmap fmt improvement

Created by: sheganinans

The reason why it would be good to have this extra semicolon and space at the end of the fmt string is that when using a CHashMap<u32,u32> or similar, then the output looks like:

0 => 11 => 12 => 1

With this semicolon and space, it will be much clearer where the value ends and the key begins:

0 => 1; 1 => 1; 2 => 1;