HACK to force a doctest failure

Author: fingolfin

docs/src/swiss_dict.md

@@ -13,7 +13,7 @@ Examples:
 ```jldoctest
 julia> d = SwissDict(1 => 'a', 2 => 'b')
 SwissDict{Int64, Char} with 2 entries:
-  1 => 'a'
+  1 => 'a'd
   2 => 'b'
 
 julia> d[3] = 'c';