(maint) Fixes fqdn_rand_string tests

Puppet 4.4.0 and later has changed fqdn_rand to use a higher ceiling
(PUP-5646), the tests for fqdn_rand_string needed to be updated to
reflect the new expected output.

Author: bmjen

spec/acceptance/fqdn_rand_string_spec.rb

@@ -17,7 +17,7 @@
         eos
 
         apply_manifest(pp, :catch_failures => true) do |r|
-          expect(r.stdout).to match(/fqdn_rand_string is "7oDp0KOr1b"/)
+          expect(r.stdout).to match(/fqdn_rand_string is "(7oDp0KOr1b|9Acvnhkt4J)"/)
         end
       end
       it 'generates random alphanumeric strings with custom charsets' do
@@ -29,7 +29,7 @@
         eos
 
         apply_manifest(pp, :catch_failures => true) do |r|
-          expect(r.stdout).to match(/fqdn_rand_string is "7203048515"/)
+          expect(r.stdout).to match(/fqdn_rand_string is "(7203048515|2383756694)"/)
         end
       end
       it 'generates random alphanumeric strings with custom seeds' do
@@ -41,7 +41,7 @@
         eos
 
         apply_manifest(pp, :catch_failures => true) do |r|
-          expect(r.stdout).to match(/fqdn_rand_string is "3HS4mbuI3E"/)
+          expect(r.stdout).to match(/fqdn_rand_string is "(3HS4mbuI3E|1jJtAMs94d)"/)
         end
       end
       it 'generates random alphanumeric strings with custom charsets and seeds' do
@@ -54,7 +54,7 @@
         eos
 
         apply_manifest(pp, :catch_failures => true) do |r|
-          expect(r.stdout).to match(/fqdn_rand_string is "3104058232"/)
+          expect(r.stdout).to match(/fqdn_rand_string is "(3104058232|7100592312)"/)
         end
       end
     end