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License Notes
This is a simple permissive license with a minimal warranty disclaimer. It also contains an optional request that modified versions of the code do not retain the original name unless it also passes the unmodified corresponding test suite.
The current revisions of this license are Free and GPL compatible. Previous versions of the license were not, because the optional request was not optional, but the Text-Tabs+Wrap upstream resolved those issues in consultation with the Free Software Foundation.
License Text
Text::Tabs
Copyright (C) 1996-2002,2005,2006 David Muir Sharnoff. Copyright (C) 2005 Aristotle Pagaltzis Copyright (C) 2012-2013 Google, Inc. This module may be modified, used, copied, and redistributed at your own risk. Although allowed by the preceding license, please do not publicly redistribute modified versions of this code with the name "Text::Tabs" unless it passes the unmodified Text::Tabs test suite.
Text::Wrap Variant
Copyright (C) 1996-2009 David Muir Sharnoff. Copyright (C) 2012-2013 Google, Inc. This module may be modified, used, copied, and redistributed at your own risk. Although allowed by the preceding license, please do not publicly redistribute modified versions of this code with the name "Text::Wrap" unless it passes the unmodified Text::Wrap test suite.