Updated docs of validate_string to reflect bug

See: https://tickets.puppetlabs.com/browse/MODULES-457

diff --git a/lib/puppet/parser/functions/validate_string.rb b/lib/puppet/parser/functions/validate_string.rb
index e667794a6791c3b5c094bccd0de65c0d5106c74c..0bab21e09035e89ddd4596d336fc97d145f83057 100644 (file)
--- a/lib/puppet/parser/functions/validate_string.rb
+++ b/lib/puppet/parser/functions/validate_string.rb
@@ -13,6 +13,9 @@ module Puppet::Parser::Functions
 
         validate_string(true)
         validate_string([ 'some', 'array' ])
+        
+    NOTE: undef will only fail when using the future parser (See: https://tickets.puppetlabs.com/browse/MODULES-457)
+    
         $undefined = undef
         validate_string($undefined)