Nicolas Cellier uploaded a new version of System to project The Trunk:
http://source.squeak.org/trunk/System-nice.731.mcz

==================== Summary ====================

Name: System-nice.731
Author: nice
Time: 30 April 2015, 11:21:11.155 pm
UUID: bef33999-82b0-49a5-a17a-536c57394b83
Ancestors: System-kfr.730

A DummyStream may do nothing, but shall mimic the answer of a regular stream.

=============== Diff against System-kfr.730 ===============

Item was changed:
  ----- Method: DummyStream>>nextStringPut: (in category 'accessing') -----
  nextStringPut: aString
+ 	"do nothing"
+ 	^aString!
- 	"do nothing"!