get rid of fixnum|bigum deprecation warning
get rid of fixnum|bigum deprecation warning

stdlib/lib/puppet/parser/functions/type3x.rb:25: warning: constant ::Fixnum is deprecated
stdlib/lib/puppet/parser/functions/type3x.rb:25: warning: constant ::Bignum is deprecated

use %w instead of array of strings

DavidS/puppetlabs-stdlib,puppetlabs/puppetlabs-stdlib,HelenCampbell/puppetlabs-stdlib