Chris Muller uploaded a new version of Tools to project The Trunk:
http://source.squeak.org/trunk/Tools-cmm.217.mcz

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

Name: Tools-cmm.217
Author: cmm
Time: 23 March 2010, 1:27:37.485 pm
UUID: bbd67314-0250-4e28-ac2e-114e73034e2e
Ancestors: Tools-laza.216

Fix for FileList, when the file-pattern is not specified by the user, show all files.

=============== Diff against Tools-laza.216 ===============

Item was changed:
  ----- Method: FileList>>pattern: (in category 'volume list and pattern') -----
  pattern: textOrStringOrNil
  
  	textOrStringOrNil
  		ifNil: [pattern := '*']
  		ifNotNil: [pattern := textOrStringOrNil asString].
+ 	pattern isEmpty ifTrue: [pattern := '*'].
  	self updateFileList.
  	^ true
  !