This is the core change, we now go through the array and add it to the first element, instead of just two arguments.
"given (#{arguments.size} for < 2)") if arguments.size < 2
a = arguments[0]
- b = arguments[1]
# Check that the first parameter is an array
unless a.is_a?(Array)
raise(Puppet::ParseError, 'concat(): Requires array to work with')
end
- result = a + Array(b)
+ result = a
+ arguments.shift
+
+ arguments.each do |x|
+ result = result + Array(x)
+ end
return result
end