from 2.23 to 2.24.
Upstream changes:
#-----------------------------------------------------------------------
# Version 2.24 - 8th February 2012
#------------------------------------------------------------------------
* Added text virtual methods: upper, lower, ucfirst, lcfirst, squote,
dquote, trim, collapse, html and xml.
* Fixed bug RT#67918 - Bug in Makefile.PL command line parsing when 2 =
signs were in an arguement.
* Fixed bug RT#74335 - Added documentation for some methods that were
lacking it to keep Pod::Coverage happy.
ee70a2c218