85d5ead Updated the concat function so that it wouldn't modify the
original array. A side-effect of this change is that it now always calls
`Array()` on the second argument. If thit is a Hash, this results in
`to_a` being called on the hash, which converts it to an array or
tuples. This is undesired.
Update the behaviour so that it doesn't (indirectly) call `to_a` on
anything, instead test for the type of the argument, wrapping it in an
array if it's not already an array.
Without this patch applied there is no easy way to append one array to
another. This is a problem because it is often desirable to join two
arrays without flattening the contents into a single, one dimensional
array.
This patch addresses the problem by adding a `concat()` function which
takes two arguments. The arguments will be concatenated together and a
new array returned to the caller.
Reviewed-by: Jeff McCune <jeff@puppetlabs.com>
