utils.toBulkString is not accesible from utils

[Andre via Digitalmars-d-learn]

Hi,

for following coding there is an error during compilation:

   module utils;

   package string toBulkString(string s)
   {
	  import std.string: format;
	  return "$%s\r\n%s\r\n".format(s.length, s);
   }

   unittest
   {
	  string actual = "foobar".toBulkString();
	  //...
   }

>> source\utils.d(11,39): Error: function utils.toBulkString is 
>> not accessible from module utils

The error disappears if I change the visibility attribute from 
package to private.
This seems to be a bug, is it?

Version: DMD v2.069.0-b2

Kind regards
André