Fix error message for existing configs in projects that have errors, but were filtered out by filtering prefs. Error message was left off, if there was one.
# about.properties
# contains externalized strings for about.ini
# java.io.Properties file (ISO 8859-1 with "\" escapes)
# fill-ins are supplied by about.mappings
# This file should be translated.
productBlurb=Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.\n\
Visit http://www.forum.nokia.com/\n\
\n\
This product includes software developed by Eclipse Project\n\
Visit http://www.eclipse.org/