to direct case insensitiveness.
* lib/optparse.rb (OptionParser#order!): ignore case only for long
option. [ruby-dev:25048]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
do not remove next argument if empty value is placed.
* test/optparse: added.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4903 b2dd03c8-39d4-4d8f-98ff-823fe69b080e